Species Gallery (termsandconditions)
The links below will open a large version of the image in an overlay
![](/assets/images/marlin/species/web/o_abralb.jpg)
Abra alba.
Copyright: Peter Barfield
![](/assets/images/marlin/species/web/o_abralb2.jpg)
A group of Abra alba.
Copyright: Marine Ecological Surveys Ltd
![](/assets/images/marlin/species/web/o_abrnit.jpg)
Abra nitida.
Copyright: Dr Hilmar Hinz
![](/assets/images/marlin/species/web/o_abrnit2.jpg)
Abra nitida.
Copyright: Marine Ecological Surveys Ltd
![](/assets/images/marlin/species/web/o_abrpri.jpg)
The bivalve Abra prismatica.
Copyright: Marine Ecological Surveys Ltd
![](/assets/images/marlin/species/web/o_acaacu.jpg)
The spiny cockle Acanthocardia aculeata on mixed sediment.
Copyright: Jim Anderson
![](/assets/images/marlin/species/web/o_acaacu2.jpg)
Museum specimens of the spiny cockle.
Copyright: Dennis R. Seaward
![](/assets/images/marlin/species/web/o_acacri.jpg)
Acanthochitona crinita in a rock pool.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_jsewell20100612_1.jpg)
Macro image of Acanthochitona crinita.
Copyright: Jack Sewell
![](/assets/images/marlin/species/web/o_acapil.jpg)
Acanthodoris pilosa.
Copyright: Jim Anderson
![](/assets/images/marlin/species/web/o_acapil2.jpg)
Acanthodoris pilosa in laboratory.
Copyright: Jim Anderson
![](/assets/images/marlin/species/web/o_acapil4.jpg)
Acanthodoris pilosa in the Scilly Isles.
Copyright: Robert Keen
![](/assets/images/marlin/species/web/o_acapil3.jpg)
Acanthodoris pilosa on substratum.
Copyright: Jim Anderson
![](/assets/images/marlin/species/web/o_acapil5.jpg)
Close up view of Acanthodoris pilosa.
Copyright: Robert Keen
![](/assets/images/marlin/species/web/o_pnewland20090424.jpg)
The sea slug Acanthodoris pilosa.
Copyright: Paul Newland
![](/assets/images/marlin/species/web/o_acttor.jpg)
Acteon tornatilis shell, approximately 1.5 cm.
Copyright: Dr Hilmar Hinz
![](/assets/images/marlin/species/web/o_acttor3.jpg)
Acteon tornatilis and burrow on Aberavon beach.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_acttor2.jpg)
Acteon tornatilis on Aberavon beach.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_adapro.jpg)
The sea slug Adalaria proxima.
Copyright: Jim Anderson
![](/assets/images/marlin/species/web/o_aeopap.jpg)
Aeolidia papillosa.
Copyright: Anne Marie Power
![](/assets/images/marlin/species/web/o_joakley20100505.jpg)
A macro image of Aeolidia papillosa at Wembury pools
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_tpearman20101201_1.jpg)
Detail of head and rhinophores of Aeolidia papillosa.
Copyright: Tabitha Pearman
![](/assets/images/marlin/species/web/o_aeopap_eggs.jpg)
Spawn of Aeolidia papillosa.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_aeopap2.jpg)
The grey sea slug Aeolidia papillosa.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_aeoald.jpg)
Aeolidiella alderi
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_aeosan.jpg)
Aeolidiella sanguinea.
Copyright: Marco Faasse
![](/assets/images/marlin/species/web/o_aeqope.jpg)
Aequipecten opercularis on mixed substrata.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_aeqope2.jpg)
Aequipecten opercularis showing mantle and eyes.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_glang20110119_6.jpg)
A resting queen scallop.
Copyright: Gordon Lang
![](/assets/images/marlin/species/web/o_glang20110119_7.jpg)
A resting queen scallop.
Copyright: Gordon Lang
![](/assets/images/marlin/species/web/o_allmed.jpg)
Line drawing of Alloteuthis media.
Copyright: FAO (Food and Agriculture Organization of the United Nations)
![](/assets/images/marlin/species/web/o_allsub.jpg)
Alloteuthis subulata.
Copyright: Marine Biological Association of the UK (MBA)
![](/assets/images/marlin/species/web/o_allsub5.jpg)
Alloteuthis subulata egg mass.
Copyright: Paul Newland
![](/assets/images/marlin/species/web/o_allsub8.jpg)
Alloteuthis subulata eggs in a laboratory tank.
Copyright: John Rundle
![](/assets/images/marlin/species/web/o_allsub6.jpg)
Adult Alloteuthis subulata in a laboratory tank.
Copyright: John Rundle
![](/assets/images/marlin/species/web/o_allsub3.jpg)
Front view of Alloteuthis subulata.
Copyright: Marine Biological Association of the UK (MBA)
![](/assets/images/marlin/species/web/o_allsub7.jpg)
Juvenile Alloteuthis subulata in a laboratory tank.
Copyright: John Rundle
![](/assets/images/marlin/species/web/o_allsub4.jpg)
Line drawing of Alloteuthis subulata.
Copyright: FAO (Food and Agriculture Organization of the United Nations)
![](/assets/images/marlin/species/web/o_allsub2.jpg)
Side view of Alloteuthis subulata.
Copyright: Marine Biological Association of the UK (MBA)
![](/assets/images/marlin/species/web/o_eubfar.jpg)
A white colour morph of Eubranchia farrani.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_eubfar4.jpg)
Eubranchus farrani pale orange/pink colour morph with Obelia sp. on kelp frond.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_eubfar7.jpg)
Eubranchus farrani against a black background.
Copyright: Fiona Crouch
![](/assets/images/marlin/species/web/o_eubfar3.jpg)
Eubranchus farrani orange and white colour morph on sugar kelp.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_eubfar6.jpg)
Eubranchus farrani orange and white colour morph.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_eubfar5.jpg)
A pair of Eubranchus farrani with hydroid and bryozoan on Ulva lactuca.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_eubfar2.jpg)
Orange and white colour morph of Eubranchus farrani on Obelia sp. attached to kelp.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_eubfar_eggs.jpg)
Spawn of Eubranchus farrani.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_plightfoot200905xx_1.jpg)
The nudibranch Ancula gibbosa, with dorsal gills.
Copyright: Paula Lightfoot
![](/assets/images/marlin/species/web/o_plightfoot200905xx_2.jpg)
Anterior view of Ancula gibbosa, with dorsal gill tuft.
Copyright: Paula Lightfoot
![](/assets/images/marlin/species/web/o_plightfoot200905xx_3.jpg)
Dorsal surface of Ancula gibbosa, with anterior rhinophores visible on the left.
Copyright: Paula Lightfoot
![](/assets/images/marlin/species/web/o_dfenwick20090623_1.jpg)
Intertidal saddle oyster
Copyright: David Fenwick Snr.
![](/assets/images/marlin/species/web/o_dfenwick20090623_2.jpg)
Interior of saddle oyster shell halves
Copyright: David Fenwick Snr.
![](/assets/images/marlin/species/web/o_plightfoot200804xx_3.jpg)
The saddle oyster Anomia ephippium, showing the mantle edge of the left valve.
Copyright: Paula Lightfoot
![](/assets/images/marlin/species/web/o_plightfoot200804xx_4.jpg)
The saddle oyster Anomia ephippium, showing the mantle edge of the left valve.
Copyright: Paula Lightfoot
![](/assets/images/marlin/species/web/o_dfenwick20060201_1.jpg)
Upper shell of saddle oyster found at low tide.
Copyright: David Fenwick Snr.
![](/assets/images/marlin/species/web/o_jancri.jpg)
Antiopella cristata.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_jancri2.jpg)
Antiopella cristata on a pontoon.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_pnewland20101027_2.jpg)
A feeding Antiopella cristata sea slug.
Copyright: Paul Newland
![](/assets/images/marlin/species/web/o_jancri3.jpg)
Close up of Antiopella cristata coruncle.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_sdaly20100805_8.jpg)
Aplysia punctata rearing up from the seabed.
Copyright: Sue Daly
![](/assets/images/marlin/species/web/o_aplpun2.jpg)
Aplysia punctata (left hand side) with Actinothoe sphyrodeta.
Copyright: Sue Scott
![](/assets/images/marlin/species/web/o_aplpun8.jpg)
Aplysia punctata eggs in a laboratory.
Copyright: John Rundle
![](/assets/images/marlin/species/web/o_aplpun9.jpg)
Aplysia punctata eggs on Dilsea carnosa.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_aplpun7.jpg)
Aplysia punctata in a laboratory.
Copyright: John Rundle
![](/assets/images/marlin/species/web/o_aplpun5.jpg)
Aplysia punctata in a rockpool at Batten Bay, Plymouth.
Copyright: Jack Sewell
![](/assets/images/marlin/species/web/o_aplpun3.jpg)
Aplysia punctata on sandy gravel in the Channel Isles.
Copyright: Sue Daly
![](/assets/images/marlin/species/web/o_aplpun6.jpg)
Aplysia punctata showing eye.
Copyright: Jack Sewell
![](/assets/images/marlin/species/web/o_aplpun10.jpg)
Aplysia punctata under a boulder.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_aplpun4.jpg)
Aplysia punctata with string of pink eggs.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_pnewland20090622_1.jpg)
A mating chain of Aplysia punctata in 14°C water.
Copyright: Paul Newland
![](/assets/images/marlin/species/web/o_pnewland20090622_2.jpg)
Egg mass from Aplysia punctata in 14°C water.
Copyright: Paul Newland
![](/assets/images/marlin/species/web/o_aplpun.jpg)
The sea hare Aplysia punctata on leaves of Zostera marina.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_apopes.jpg)
Aporrhais pespelecani.
Copyright: Marine Biological Association of the UK (MBA)
![](/assets/images/marlin/species/web/o_apopes3.jpg)
Aporrhais pespelecani on a green background.
Copyright: Dr Hilmar Hinz
![](/assets/images/marlin/species/web/o_apopes4.jpg)
Aporrhais pespelecani shell lying on some sand.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_apopes2.jpg)
A pair of Aporrhais pespelecani
Copyright: Marine Biological Association of the UK (MBA)
![](/assets/images/marlin/species/web/o_arcisl3.jpg)
Arctica islandica on a black background.
Copyright: Dr Hilmar Hinz
![](/assets/images/marlin/species/web/o_armlov.jpg)
The sea slug Armina loveni.
Copyright: Jim Anderson
![](/assets/images/marlin/species/web/o_astmon.jpg)
Astarte montagui.
Copyright: Dr Sebastian Holmes
![](/assets/images/marlin/species/web/o_astsul.jpg)
Astarte sulcata.
Copyright: Dr Sebastian Holmes
![](/assets/images/marlin/species/web/o_astsul2.jpg)
Astarte sulcata on a green background.
Copyright: Dr Hilmar Hinz
![](/assets/images/marlin/species/web/o_atrfra.jpg)
Adult Atrina fragilis embedded in sea bed.
Copyright: Sue Scott
![](/assets/images/marlin/species/web/o_atrfra8.jpg)
Atrina fragilis in muddy gravel, Ireland.
Copyright: Erling Svensen
![](/assets/images/marlin/species/web/o_atrfra6.jpg)
Atrina fragilis in soft mud in Plymouth Sound.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_atrfra3.jpg)
Atrina fragilis on the seabed.
Copyright: Sue Scott
![](/assets/images/marlin/species/web/o_atrfra5.jpg)
Atrina fragilis removed from soft mud in Plymouth Sound.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_atrfra2.jpg)
Side view of Atrina fragilis in the seabed.
Copyright: Sue Scott
![](/assets/images/marlin/species/web/o_atrfra4.jpg)
Side view of Atrina fragilis on log showing scale.
Copyright: Sue Scott
![](/assets/images/marlin/species/web/o_barcan.jpg)
Barnea candida in situ.
Copyright: Amgueddfa Cymru - Museum Wales
![](/assets/images/marlin/species/web/o_phodac3.jpg)
Barnea candida valve.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_barcan2.jpg)
Apical view of Barnea candida protoplax.
Copyright: Amgueddfa Cymru - Museum Wales
![](/assets/images/marlin/species/web/o_barcan3.jpg)
Internal view of Barnea candida valve.
Copyright: Amgueddfa Cymru - Museum Wales
![](/assets/images/marlin/species/web/o_batarc.jpg)
Line drawing of Bathypolypus arcticus.
Copyright: FAO (Food and Agriculture Organization of the United Nations)
![](/assets/images/marlin/species/web/o_tpearman20110316_1.jpg)
Berthella plumula on Spirorbis covered rock.
Copyright: Tabitha Pearman
![](/assets/images/marlin/species/web/o_tpearman20110316_2.jpg)
Berthella plumula.
Copyright: Tabitha Pearman
![](/assets/images/marlin/species/web/o_hlatham20080606_1.jpg)
An active sea slug, Berthella plumula.
Copyright: Holly Latham
![](/assets/images/marlin/species/web/o_bitret.jpg)
Apertural view of Bittium reticulatum.
Copyright: Amgueddfa Cymru - Museum Wales
![](/assets/images/marlin/species/web/o_glang20101218.jpg)
Buccinum undatum
Copyright: Gordon Lang
![](/assets/images/marlin/species/web/o_bucund5.jpg)
Buccinum undatum crawling on the seabed highlighting shape of foot, tentacles and siphon. Note also the Crepidula fornicata on the shell.
Copyright: Paul Newland
![](/assets/images/marlin/species/web/o_bucund8.jpg)
Buccinum undatum egg mass.
Copyright: Paul Newland
![](/assets/images/marlin/species/web/o_bucund9.jpg)
Buccinum undatum shell against a blue background.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_bucund7.jpg)
Group of Buccinum undatum illustrating shape of foot, siphon and operculum.
Copyright: Marine Ecological Surveys Ltd
![](/assets/images/marlin/species/web/o_bucund4.jpg)
The whelk Buccinum undatum laying eggs, late December 2002.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_glang20110202_5.jpg)
Three spawning Buccinum undatum with Sea Loch anemones
Copyright: Gordon Lang
![](/assets/images/marlin/species/web/o_bucund6.jpg)
Two Buccinum undatum individuals in what appears to be a mating position.
Copyright: Paul Newland
![](/assets/images/marlin/species/web/o_cadlae.jpg)
Cadlina laevis with encrusting red algae at Doune, Scotland.
Copyright: Fiona Crouch
![](/assets/images/marlin/species/web/o_cadlae2.jpg)
Cadlina laevis in the Scilly Isles.
Copyright: Robert Keen
![](/assets/images/marlin/species/web/o_caearm.jpg)
Six specimens of Caecum armoricum.
Copyright: Dennis R. Seaward
![](/assets/images/marlin/species/web/o_caearm2.jpg)
Front half of adult Caecum armoricum.
Copyright: Nigel Charles
![](/assets/images/marlin/species/web/o_caearm4.jpg)
Post larval juvenile of Caecum armoricum. Whole animal and shell, showing protoconch and operculum.
Copyright: Nigel Charles
![](/assets/images/marlin/species/web/o_caearm3.jpg)
Two specimens of Caecum armoricum. The smaller specimen has laid down a new septum preparatory to breaking off the empty part of the shell.
Copyright: Nigel Charles
![](/assets/images/marlin/species/web/o_calziz.jpg)
Painted top shell
Copyright: Paul Naylor
![](/assets/images/marlin/species/web/o_calziz5.jpg)
Calliostoma zizyphinum in Lyme Bay, Devon.
Copyright: Robert Keen
![](/assets/images/marlin/species/web/o_calziz8.jpg)
Calliostoma zizyphinum on a rock amongst barnacles and limpets.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_calziz4.jpg)
Calliostoma zizyphinum with Corynactis viridis on the Manacles, southwest Cornwall.
Copyright: Robert Keen
![](/assets/images/marlin/species/web/o_calziz2.jpg)
Calliostoma zizyphinum.
Copyright: Dr Harvey Tyler-Walters
![](/assets/images/marlin/species/web/o_calziz6.jpg)
Lone Calliostoma zizyphinum at Firestone.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_calziz7.jpg)
Lone Calliostoma zizyphinum at Lundy.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_calziz3.jpg)
Painted top shell.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_calchi_venus.jpg)
External view of Callista chione valve.
Copyright: Amgueddfa Cymru - Museum Wales
![](/assets/images/marlin/species/web/o_calchi2_venus.jpg)
Internal view of Callista chione valve.
Copyright: Amgueddfa Cymru - Museum Wales
![](/assets/images/marlin/species/web/o_calchi3_venus.jpg)
Side profile of Callista chione.
Copyright: Amgueddfa Cymru - Museum Wales
![](/assets/images/marlin/species/web/o_calele.jpg)
Caloria elegans from a rocky reef area, Co Antrim.
Copyright: Bernard Picton
![](/assets/images/marlin/species/web/o_dfenwick20060302_2.jpg)
Chinamans hat snail attached to intertidal vegetation
Copyright: David Fenwick Snr.
![](/assets/images/marlin/species/web/o_dfenwick20090206_6.jpg)
Aperture of Chinamans hat shell, found on beach
Copyright: David Fenwick Snr.
![](/assets/images/marlin/species/web/o_dfenwick20090206_5.jpg)
Spire of Chinamans hat shell, found on beach
Copyright: David Fenwick Snr.
![](/assets/images/marlin/species/web/o_flapel.jpg)
Flabellina pellucida.
Copyright: Sue Scott
![](/assets/images/marlin/species/web/o_ceredu.jpg)
The common cockle Cerastoderma edule on mud surface.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_ceredu5.jpg)
Cerastoderma edule on a black background.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_ceredu2.jpg)
Shell of Cerastoderma edule opened to display hinge.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_cergla.jpg)
Three Cerastoderma glaucum with siphons extended.
Copyright: Dennis R. Seaward
![](/assets/images/marlin/species/web/o_dfenwick20040112_1.jpg)
An intertidal feeding Cerithiopsis tubercularis
Copyright: David Fenwick Snr.
![](/assets/images/marlin/species/web/o_dfenwick20040112_2.jpg)
An intertidal feeding Cerithiopsis tubercularis
Copyright: David Fenwick Snr.
![](/assets/images/marlin/species/web/o_chagal.jpg)
External view of Chamelea gallina valve.
Copyright: Amgueddfa Cymru - Museum Wales
![](/assets/images/marlin/species/web/o_chagal3.jpg)
Chamelea gallina on a black background.
Copyright: Dr Hilmar Hinz
![](/assets/images/marlin/species/web/o_chagal2.jpg)
Internal view of Chamelea gallina valve.
Copyright: Amgueddfa Cymru - Museum Wales
![](/assets/images/marlin/species/web/o_clafas.jpg)
External view of Clausinella fasciata valve.
Copyright: Amgueddfa Cymru - Museum Wales
![](/assets/images/marlin/species/web/o_clafas2.jpg)
Internal view of Clausinella fasciata valve.
Copyright: Amgueddfa Cymru - Museum Wales
![](/assets/images/marlin/species/web/o_clafas3.jpg)
Side profile of Clausinella fasciata.
Copyright: Amgueddfa Cymru - Museum Wales
![](/assets/images/marlin/species/web/o_colisl.jpg)
Apertural view of Colus islandicus.
Copyright: Amgueddfa Cymru - Museum Wales
![](/assets/images/marlin/species/web/o_crefor6.jpg)
Crepidula fornicata at Oreston Spit.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_crefor5.jpg)
Crepidula fornicata growing on the shell of an edible crab illustrating diversity of substrata on which it can grow.
Copyright: Peter Watkinson
![](/assets/images/marlin/species/web/o_crefor2.jpg)
Chain of slipper limpets on the lower shore.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_crefor3.jpg)
Individual Crepidula fornicata on pebble intertidally
Copyright: Jack Sewell
![](/assets/images/marlin/species/web/o_crefor4.jpg)
Single Crepidula fornicata on rock overhang.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_denfro.jpg)
Dendronotus frondosus on kelp at Bach Island, Firth of Lorne on the west coast of Scotland.
Copyright: Jim Anderson
![](/assets/images/marlin/species/web/o_denfro2.jpg)
Dendronotus frondosus from the north coast of Bernera Island, Lismore on the west coast of Scotland.
Copyright: Jim Anderson
![](/assets/images/marlin/species/web/o_dialut.jpg)
Diaphorodoris luteocincta at 36 metres on the wreck of the King Cadwallan, Hard Lewis Rocks, Isles of Scilly.
Copyright: Robert Keen
![](/assets/images/marlin/species/web/o_dialut2.jpg)
Pair of Diaphorodoris luteocincta.
Copyright: Robert Keen
![](/assets/images/marlin/species/web/o_diogra.jpg)
Common keyhole limpet Diodora graeca.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_diogra2.jpg)
Diodora graeca feeding on a sponge on the side of a rock.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_dfenwick20040101_6.jpg)
Assorted colours and shapes of banded wedge shells
Copyright: David Fenwick Snr.
![](/assets/images/marlin/species/web/o_dfenwick20060117_1.jpg)
Inside of shell half of the banded wedge shell
Copyright: David Fenwick Snr.
![](/assets/images/marlin/species/web/o_donvit.jpg)
Open empty shell of Donax vittatus.
Copyright: Paul Naylor
![](/assets/images/marlin/species/web/o_dfenwick20040101_1.jpg)
Shell half of the banded wedge shell
Copyright: David Fenwick Snr.
![](/assets/images/marlin/species/web/o_dfenwick20060117_2.jpg)
Shell half of the banded wedge shell
Copyright: David Fenwick Snr.
![](/assets/images/marlin/species/web/o_arcpse8.jpg)
Yellow eggs of Archidoris pseudoargus.
Copyright: Fiona Crouch
![](/assets/images/marlin/species/web/o_pnewland20110329_5.jpg)
Archidoris pseudoargus
Copyright: Paul Newland
![](/assets/images/marlin/species/web/o_arcpse6.jpg)
Archidoris pseudoargus eggs in a laboratory tank.
Copyright: John Rundle
![](/assets/images/marlin/species/web/o_arcpse4.jpg)
Archidoris pseudoargus feeding on breadcrumb sponge.
Copyright: Peter Barfield
![](/assets/images/marlin/species/web/o_arcpse11.jpg)
A pale Archidoris pseudoargus at low tide.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_arcpse10.jpg)
An orange Archidoris pseudoargus specimen.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_arcpse7.jpg)
Close up view of Archidoris pseudoargus eggs in a laboratory tank.
Copyright: John Rundle
![](/assets/images/marlin/species/web/o_arcpse9.jpg)
Lemon-peel like eggs of Archidoris pseudoargus.
Copyright: Fiona Crouch
![](/assets/images/marlin/species/web/o_arcpse3.jpg)
Mating sea lemons.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_arcpse5.jpg)
The egg ribbon of the sea lemon Archidoris pseudoargus.
Copyright: Peter Barfield
![](/assets/images/marlin/species/web/o_arcpse2.jpg)
The sea lemon Archidoris pseudoargus in rockpool.
Copyright: Anne Marie Power
![](/assets/images/marlin/species/web/o_arcpse.jpg)
The sea lemon Archidoris pseudoargus.
Copyright: Jack Sewell
![](/assets/images/marlin/species/web/o_dorsti.jpg)
Doris sticta.
Copyright: Paul Newland
![](/assets/images/marlin/species/web/o_sdaly20100805_7.jpg)
Doris sticta on the sea floor
Copyright: Sue Daly
![](/assets/images/marlin/species/web/o_dosexo.jpg)
External view of Dosinia exoleta valve.
Copyright: Amgueddfa Cymru - Museum Wales
![](/assets/images/marlin/species/web/o_dosexo2.jpg)
Internal view of Dosinia exoleta valve.
Copyright: Amgueddfa Cymru - Museum Wales
![](/assets/images/marlin/species/web/o_doslup.jpg)
The smooth Artemis Dosinia lupinus on a black background.
Copyright: Dr Hilmar Hinz
![](/assets/images/marlin/species/web/o_KHiscock_Doto_fragilis_WestHoe_2021-11-02.jpg)
Doto fragilis
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_trinil.jpg)
Duvaucelia odhneri and eggs on the sea fan Eunicella verrucosa.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_trinil2.jpg)
Duvaucelia odhneri on Eunicella verrucosa.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_trinil3.jpg)
Duvaucelia odhneri on a sea fan.
Copyright: Robert Keen
![](/assets/images/marlin/species/web/o_trinil5.jpg)
Close up view of Duvaucelia odhneri on a sea fan.
Copyright: Robert Keen
![](/assets/images/marlin/species/web/o_pnewland200xxxxx_1.jpg)
Sea slug Duvaucelia odhneri on sea fan Eunicella verrucosa.
Copyright: Paul Newland
![](/assets/images/marlin/species/web/o_trinil4.jpg)
The sea slug Duvaucelia odhneri with its eggs.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_elecir.jpg)
Eledone cirrhosa
Copyright: Joint Nature Conservation Committee (JNCC)
![](/assets/images/marlin/species/web/o_elecir7.jpg)
Eledone cirrhosa against the glass of a laboratory tank.
Copyright: John Rundle
![](/assets/images/marlin/species/web/o_elecir3.jpg)
Eledone cirrhosa juvenile.
Copyright: Dr Hilmar Hinz
![](/assets/images/marlin/species/web/o_elecir6.jpg)
Eledone cirrhosa scrambling up a rock in a laboratory.
Copyright: John Rundle
![](/assets/images/marlin/species/web/o_elecir2.jpg)
Eledone cirrhosa, curled octopus.
Copyright: Joint Nature Conservation Committee (JNCC)
![](/assets/images/marlin/species/web/o_elecir4.jpg)
Line drawing of Eledone cirrhosa.
Copyright: FAO (Food and Agriculture Organization of the United Nations)
![](/assets/images/marlin/species/web/o_elecir5.jpg)
Mottled Eledone cirrhosa near the seabed.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_elecir8.jpg)
Newly born Eledone cirrhosa.
Copyright: John Rundle
![](/assets/images/marlin/species/web/o_elyvir.jpg)
Elysia viridis.
Copyright: Sue Scott
![](/assets/images/marlin/species/web/o_elyvir4.jpg)
Elysia viridis crawling in a rockpool; note the characteristic bright green-blue spots.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_elyvir3.jpg)
Elysia viridis with egg ribbon on Codium spp.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_elyvir2.jpg)
Elysia viridis.
Copyright: Sue Scott
![](/assets/images/marlin/species/web/o_tpearman-elysia-viridis2-2013-03-10.jpg)
Two Elysia viridis in a rockpool.
Copyright: Tabitha Pearman
![](/assets/images/marlin/species/web/o_emafis.jpg)
The slit limpet Emarginula fissura.
Copyright: Bryan Wasson
![](/assets/images/marlin/species/web/o_ensspp8.jpg)
Ensis ensis, the razor shell.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_ensspp9.jpg)
Ensis siliqua shell on a dark background.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_ensspp6.jpg)
The razor shell Ensis siliqua showing almost straight sided valves.
Copyright: Paul Newland
![](/assets/images/marlin/species/web/o_ensspp.jpg)
The razor shell Ensis siliqua.
Copyright: Paul Newland
![](/assets/images/marlin/species/web/o_ensspp7.jpg)
The siphons of a razor shell.
Copyright: Paul Newland
![](/assets/images/marlin/species/web/o_epicla.jpg)
Apertural view of Epitonium clathrus.
Copyright: Amgueddfa Cymru - Museum Wales
![](/assets/images/marlin/species/web/o_euscat.jpg)
Adapertural (back) view of Euspira catena.
Copyright: Amgueddfa Cymru - Museum Wales
![](/assets/images/marlin/species/web/o_pnewland20090622.jpg)
A live necklace shell on the beach, with foot spread across substratum.
Copyright: Paul Newland
![](/assets/images/marlin/species/web/o_euscat2.jpg)
Apertural view of Euspira catena.
Copyright: Amgueddfa Cymru - Museum Wales
![](/assets/images/marlin/species/web/o_euscat3.jpg)
Egg collar of the necklace shell Euspira catena. Another species (probably the thick-lipped whelk) has attached its own eggs to the underside of the collar.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_fabfab.jpg)
Fabulina fabula.
Copyright: Peter Barfield
![](/assets/images/marlin/species/web/o_fabfab2.jpg)
Fabulina fabula on a black background.
Copyright: Dr Hilmar Hinz
![](/assets/images/marlin/species/web/o_facaur.jpg)
Facelina auriculata on Ulva lactuca.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_facaur4.jpg)
Facelina auriculata at Mayflower Marina.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_fcrouch20100810_3.jpg)
Facelina auriculata on Laminaria.
Copyright: Fiona Crouch
![](/assets/images/marlin/species/web/o_facaur3.jpg)
Facelina auriculata.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_facaur5.jpg)
A Facelina auriculata with long oral tentacles.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_facaur2.jpg)
Closer view of Facelina auriculata on Ulva lactuca.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_facaur_eggs.jpg)
Spawn of Facelina auriculata.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_facbos.jpg)
Facelina bostoniensis .
Copyright: Sue Scott
![](/assets/images/marlin/species/web/o_facbos2.jpg)
Facelina bostoniensis.
Copyright: Sue Scott
![](/assets/images/marlin/species/web/o_KHiscock_Fjordia_browni4_Battery_Bouy_2021-11-02.jpg)
Fjordia browni
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_KHiscock_Fjordia_brownii_Firestone_2021-11-02.jpg)
Fjordia browni on hydroids
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_KHiscock_Fjordia_lineata_Firestone_2021-11-03.jpg)
Fjordia lineata
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_KHiscock_Fjordia_lineata2_Firestone_2021-11-03.jpg)
Fjordia lineata and egg masses on erect hydroids
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_geipla.jpg)
Geitodoris planata.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_geipla2.jpg)
Geitodoris planata at Scapa Flow, Orkneys.
Copyright: Robert Keen
![](/assets/images/marlin/species/web/o_MikePuleston-Gibbula-magus-230617-1.jpg)
The Turban Top Shell Gibbula magus
Copyright: Michael Puleston
![](/assets/images/marlin/species/web/o_MikePuleston-Gibbula-magus-230617-2.jpg)
Apertural view of Gibbula magus
Copyright: Michael Puleston
![](/assets/images/marlin/species/web/o_glygly.jpg)
Shell of the dog cockle Glycymeris glycymeris.
Copyright: Jo Trout
![](/assets/images/marlin/species/web/o_glygly2.jpg)
Both valves of the dog cockle Glycymeris glycymeris.
Copyright: Jo Trout
![](/assets/images/marlin/species/web/o_glygly3.jpg)
Multiple Glycymeris glycymeris shells on the seabed.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_gonnod.jpg)
Goniodoris nodosa, found attached to sugar kelp on a pontoon.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_haltub.jpg)
Outer view of Haliotis tuberculata.
Copyright: Amgueddfa Cymru - Museum Wales
![](/assets/images/marlin/species/web/o_sdaly20100806.jpg)
Haliotis tuberculata
Copyright: Sue Daly
![](/assets/images/marlin/species/web/o_haltub3.jpg)
Haliotis tuberculata in the Channel Isles.
Copyright: Sue Daly
![](/assets/images/marlin/species/web/o_haltub4.jpg)
An empty Haliotis tuberculata shell in the Channel Isles.
Copyright: Sue Daly
![](/assets/images/marlin/species/web/o_haltub2.jpg)
Inner view of Haliotis tuberculata.
Copyright: Amgueddfa Cymru - Museum Wales
![](/assets/images/marlin/species/web/o_haltub5.jpg)
Underside of Haliotis tuberculata shell.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_herfor.jpg)
Hero formosa on sediment.
Copyright: Jim Anderson
![](/assets/images/marlin/species/web/o_hiaarc.jpg)
Hiatella arctica.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_hiaarc2.jpg)
Hiatella arctica in burrow.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_illcoi.jpg)
Line drawing of Illex coindetii.
Copyright: FAO (Food and Agriculture Organization of the United Nations)
![](/assets/images/marlin/species/web/o_jortom3.jpg)
Two specimens of Jorunna tomentosa beneath rock overhang.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_jortom.jpg)
Jorunna tomentosa on Ulva lactuca.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_jortom2.jpg)
Jorunna tomentosa, on Ulva lactuca on a marine pontoon.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_jortom_eggs.jpg)
Spawn of Jorunna tomentosa.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_jujstr.jpg)
Apertural view of Jujubinus striatus.
Copyright: Amgueddfa Cymru - Museum Wales
![](/assets/images/marlin/species/web/o_lacvin.jpg)
The banded chink snail Lacuna vincta on kelp.
Copyright: Marine Biological Association of the UK (MBA)
![](/assets/images/marlin/species/web/o_lasada.jpg)
External view of Lasaea adansoni valve.
Copyright: Amgueddfa Cymru - Museum Wales
![](/assets/images/marlin/species/web/o_lepsca.jpg)
Top view of Leptochiton scabridus.
Copyright: Amgueddfa Cymru - Museum Wales
![](/assets/images/marlin/species/web/o_limhia.jpg)
Limaria hians.
Copyright: Sue Scott
![](/assets/images/marlin/species/web/o_limhia2.jpg)
Limaria hians and nest.
Copyright: Sue Scott
![](/assets/images/marlin/species/web/o_limhia4.jpg)
Limaria hians hidden within a nest.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_limhia3.jpg)
Close up of the tentacles of Limaria hians.
Copyright: Sue Scott
![](/assets/images/marlin/species/web/o_litlit5.jpg)
Littorina littorea in a rock crevice.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_litlit6.jpg)
Littorina littorea showing its withdrawn operculum.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_litlit3.jpg)
Edible periwinkle Littorina littorea on sheltered vertical rock at Millport, Firth of Clyde.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_litlit7.jpg)
Lone Littorina littorea viewed from above.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_litlit2.jpg)
Three Littorina littorea on intertidal rock with limpets, barnacles and weed.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_litlit4.jpg)
Three Littorina littorea on rock under water at high tide.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_litobt.jpg)
Littorina obtusata.
Copyright: Peter Barfield
![](/assets/images/marlin/species/web/o_litobt5.jpg)
Littorina obtusata on Fucus sp.
Copyright: Dr Charlotte Marshall
![](/assets/images/marlin/species/web/o_litobt4.jpg)
Littorina obtusata.
Copyright: Sue Scott
![](/assets/images/marlin/species/web/o_litobt2.jpg)
Collection of Littorina obtusata shells.
Copyright: Sue Daly
![](/assets/images/marlin/species/web/o_litobt8.jpg)
Eggs of Littorina obtusata.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_litobt7.jpg)
Young Littorina obtusata with a distinctly banded shell.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_litsax.jpg)
Littorina saxatilis, rough periwinkles amongst barnacles, Semibalanus balanoides.
Copyright: Sue Scott
![](/assets/images/marlin/species/web/o_litsax4.jpg)
Littorina saxatilis individuals in the gap between two rocks.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_litsax2.jpg)
Lone Littorina saxatilis individual on a boulder.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_litsax3.jpg)
Lone upturned Littorina saxatilis individual on a boulder
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_lolfor.jpg)
Loligo forbesi.
Copyright: Marine Biological Association of the UK (MBA)
![](/assets/images/marlin/species/web/o_lolfor2.jpg)
Line drawing of Loligo forbesi.
Copyright: FAO (Food and Agriculture Organization of the United Nations)
![](/assets/images/marlin/species/web/o_lolvul.jpg)
Line drawing of Loligo vulgaris.
Copyright: FAO (Food and Agriculture Organization of the United Nations)
![](/assets/images/marlin/species/web/o_lolvul3.jpg)
Eggs of Loligo vulgaris in a laboratory.
Copyright: John Rundle
![](/assets/images/marlin/species/web/o_lolvul2.jpg)
Eggs of the common squid washed up on the shore.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_macbal.jpg)
Macoma balthica.
Copyright: Marine Biological Association of the UK (MBA)
![](/assets/images/marlin/species/web/o_angten.jpg)
External view of Macomangulus tenuis valve.
Copyright: Amgueddfa Cymru - Museum Wales
![](/assets/images/marlin/species/web/o_angten2.jpg)
Internal view of Macomangulus tenuis valves.
Copyright: Amgueddfa Cymru - Museum Wales
![](/assets/images/marlin/species/web/o_cragig.jpg)
Magallana gigas at Batten Bay, Plymouth Sound.
Copyright: Guy Baker
![](/assets/images/marlin/species/web/o_pnewland20110205.jpg)
Magallana gigas (with diver)
Copyright: Paul Newland
![](/assets/images/marlin/species/web/o_cragig4.jpg)
Magallana gigas at Firestone Bay, Plymouth Sound.
Copyright: Jack Sewell
![](/assets/images/marlin/species/web/o_cragig6.jpg)
Magallana gigas at Jennycliff Bay.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_cragig5.jpg)
Magallana gigas growing on the side of a marina pontoon.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_cragig7.jpg)
Magallana gigas on a dark, barnacle covered rock.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_cragig8.jpg)
Magallana gigas on open rock.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_cragig2.jpg)
Magallana gigas, Kingsand.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_marhel.jpg)
The pearl top shell Margarites helicinus.
Copyright: Erling Svensen
![](/assets/images/marlin/species/web/o_marhel2.jpg)
Margarites helicinus with eggs.
Copyright: Erling Svensen
![](/assets/images/marlin/species/web/o_melner2.jpg)
Melarhaphe neritoides in high shore crevice.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_mermer.jpg)
External view of Mercenaria mercenaria valve.
Copyright: Amgueddfa Cymru - Museum Wales
![](/assets/images/marlin/species/web/o_mermer2.jpg)
Internal view of Mercenaria mercenaria valve.
Copyright: Amgueddfa Cymru - Museum Wales
![](/assets/images/marlin/species/web/o_mermer3.jpg)
Side view of Mercenaria mercenaria lunule.
Copyright: Amgueddfa Cymru - Museum Wales
![](/assets/images/marlin/species/web/o_KHiscock_Microchlamylla gracilis2_Firestone_2021-11-03.jpg)
The slender sea slug Microchlamylla gracilis
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_dfenwick20040109_1.jpg)
The bearded horse mussel on a rocky intertidal shore
Copyright: David Fenwick Snr.
![](/assets/images/marlin/species/web/o_modmod.jpg)
Horse mussel bed with hydroids and red seaweed, Linga Sound, Shetland.
Copyright: Joint Nature Conservation Committee (JNCC)
![](/assets/images/marlin/species/web/o_modmod3.jpg)
Clump of horse mussels Modiolus modiolus on bedrock.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_modmod4.jpg)
Group of horse mussels in sediment.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_musdis.jpg)
Musculus discors living in bryozoan turf collected from dead Eunicella verrucosa.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_myaare.jpg)
A selection of adult Mya arenaria.
Copyright: Dr Matthias Strasser
![](/assets/images/marlin/species/web/o_myaare2.jpg)
A selection of juvenile Mya arenaria about 2-5 mm in length.
Copyright: Dr Matthias Strasser
![](/assets/images/marlin/species/web/o_myaare3.jpg)
Characteristic siphon holes of Mya arenaria.
Copyright: Dr Matthias Strasser
![](/assets/images/marlin/species/web/o_myatru.jpg)
Specimen of Mya truncata.
Copyright: Tim Siferd
![](/assets/images/marlin/species/web/o_myatru2.jpg)
Siphons of Mya truncata visible on sediment surface at 19m off Qikiqtarjuag, Canada.
Copyright: Tim Siferd
![](/assets/images/marlin/species/web/o_myrspi.jpg)
Myrtea spinifera.
Copyright: Peter Barfield
![](/assets/images/marlin/species/web/o_mytedu.jpg)
Clump of mussels.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_mytedu9.jpg)
Mytilus edulis covered in barnacles - close up.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_mytedu10.jpg)
Mytilus edulis covered in barnacles.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_mytedu4.jpg)
Mytilus edulis, on a buoy line, feeding.
Copyright: Sue Scott
![](/assets/images/marlin/species/web/o_mytedu5.jpg)
Dense clump of mussels with barnacles on individuals.
Copyright: Sue Scott
![](/assets/images/marlin/species/web/o_mytedu2.jpg)
Dense covering of mussels on intertidal rocks.
Copyright: Sue Scott
![](/assets/images/marlin/species/web/o_mytedu3.jpg)
Dense growth of young mussels with barnacles and two dog whelks.
Copyright: Sue Scott
![](/assets/images/marlin/species/web/o_mytedu6.jpg)
Mussel shells displayed on gravel.
Copyright: Sue Daly
![](/assets/images/marlin/species/web/o_nepant.jpg)
Neptunea antiqua.
Copyright: Scottish Natural Heritage (SNH)
![](/assets/images/marlin/species/web/o_nuclap.jpg)
Group of Nucella lapillus and eggs on an overhang (the photograph is upside-down to aid identification).
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_nuclap2.jpg)
Nucella lapillus with black and white stripes.
Copyright: Sue Daly
![](/assets/images/marlin/species/web/o_nuclap4.jpg)
Nucella lapillus with egg capsules.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_nuclap9.jpg)
Nucella lapilus on a rock.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_nuclap8.jpg)
Nucella lapilus under an overhang.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_nuclap6.jpg)
Bright orange Nucella lapilus.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_bseeley20120812.jpg)
Brown and white striped Nucella lapillus on barnacles
Copyright: Becky Seeley
![](/assets/images/marlin/species/web/o_nuclap10.jpg)
Brown and white striped juvenile Nucella lapilus.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_nuclap7.jpg)
Close up view of Nucella lapilus and their eggs.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_nuclap3.jpg)
Dogwhelk on rock. Photo taken underwater.
Copyright: Sue Daly
![](/assets/images/marlin/species/web/o_nuclap5.jpg)
The dog whelk Nucella lapillus, highlighting colour variation.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_nucnit.jpg)
Nucula nitidosa
Copyright: Dr Sebastian Holmes
![](/assets/images/marlin/species/web/o_nucnit2.jpg)
Nucula nitidosa on a black background.
Copyright: Dr Hilmar Hinz
![](/assets/images/marlin/species/web/o_nucsul.jpg)
Nucula sulcata.
Copyright: Dr Sebastian Holmes
![](/assets/images/marlin/species/web/o_dfenwick20051006_4.jpg)
Live oyster drill
Copyright: David Fenwick Snr.
![](/assets/images/marlin/species/web/o_oceeri.jpg)
Ocenebra erinacea with egg capsules.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_dfenwick20090206_10.jpg)
Aperture and ventral side of oyster drill shell
Copyright: David Fenwick Snr.
![](/assets/images/marlin/species/web/o_dfenwick20060429_2.jpg)
Egg sacs containing eggs of oyster drills
Copyright: David Fenwick Snr.
![](/assets/images/marlin/species/web/o_dfenwick20051006_2.jpg)
Live oyster drill
Copyright: David Fenwick Snr.
![](/assets/images/marlin/species/web/o_dfenwick20090206_9.jpg)
Right side of oyster drill shell
Copyright: David Fenwick Snr.
![](/assets/images/marlin/species/web/o_dfenwick20060429_1.jpg)
Two oyster drills with cluster of egg sacs
Copyright: David Fenwick Snr.
![](/assets/images/marlin/species/web/o_oceeri2.jpg)
Underside of Ocenebra erinacea.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_octvul.jpg)
Octopus vulgaris.
Copyright: Marine Biological Association of the UK (MBA)
![](/assets/images/marlin/species/web/o_okeele.jpg)
Okenia elegans
Copyright: Paul Naylor
![](/assets/images/marlin/species/web/o_khiscock20080415.jpg)
A front view of the yellow skirt slug
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_onccel.jpg)
The celtic sea slug Onchidella celtica.
Copyright: Peter Barfield
![](/assets/images/marlin/species/web/o_fcrouch20100811_10.jpg)
Onchidella celtica
Copyright: Fiona Crouch
![](/assets/images/marlin/species/web/o_fcrouch20100811_11.jpg)
Onchidella celtica besides a limpet and barnacles.
Copyright: Fiona Crouch
![](/assets/images/marlin/species/web/o_onccel2.jpg)
A pair of mating Onchidella celtica.
Copyright: Peter Barfield
![](/assets/images/marlin/species/web/o_bseeley20120812_1.jpg)
Anterior view of a Celtic sea slug Onchidella celtica on Mytilus edulis
Copyright: Becky Seeley
![](/assets/images/marlin/species/web/o_oncbil.jpg)
Onchidoris bilamellata.
Copyright: Jim Anderson
![](/assets/images/marlin/species/web/o_jkakkonen20100310_2.jpg)
Onchidoris bilamellata in fucoid zone.
Copyright: Jenni Kakkonen
![](/assets/images/marlin/species/web/o_pnewland20110119_1.jpg)
Onchidoris bilamellata on muddy silt substratum.
Copyright: Paul Newland
![](/assets/images/marlin/species/web/o_oncbil2.jpg)
Onchidoris bilamellata spawn.
Copyright: Jim Anderson
![](/assets/images/marlin/species/web/o_pnewland20110119.jpg)
A group of Onchidoris bilamellata.
Copyright: Paul Newland
![](/assets/images/marlin/species/web/o_glang20110119.jpg)
An Onchidoris bilamellata aggregation.
Copyright: Gordon Lang
![](/assets/images/marlin/species/web/o_glang20110119_1.jpg)
An Onchidoris bilamellata aggregation.
Copyright: Gordon Lang
![](/assets/images/marlin/species/web/o_oncmur.jpg)
Onchidoris muricata.
Copyright: Jim Anderson
![](/assets/images/marlin/species/web/o_oncmur2.jpg)
Dorsal view of Onchidoris muricata.
Copyright: Jim Anderson
![](/assets/images/marlin/species/web/o_ostedu.jpg)
A view of the upper (right) side of a native oyster attached to pebbles.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_ostedu2.jpg)
Native oyster Ostrea edulis exposed by the tide at Oreston Spit, Plym Estuary.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_ostedu3.jpg)
Native oyster Ostrea edulis in shallow water at Durgon, Itelford River, Cornwall.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_otiova.jpg)
Otina ovata on a rock covered by the barnacle Semibalanus balanoides.
Copyright: Peter Barfield
![](/assets/images/marlin/species/web/o_pallit.jpg)
Three live shells and one empty one of Paludinella globularis.
Copyright: Dennis R. Seaward
![](/assets/images/marlin/species/web/o_pallit2.jpg)
One animal crawling. Eyes showing in centre of lobed tentacles.
Copyright: Dennis R. Seaward
![](/assets/images/marlin/species/web/o_patdep.jpg)
The limpet Patella depressa.
Copyright: MarClim
![](/assets/images/marlin/species/web/o_patdep2.jpg)
Patella depressa with a greenish tint.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_helpel.jpg)
Patella pellucida on kelp blade.
Copyright: Marine Biological Association of the UK (MBA)
![](/assets/images/marlin/species/web/o_helpel6.jpg)
Patella pellucida in Doune.
Copyright: Fiona Crouch
![](/assets/images/marlin/species/web/o_helpel4.jpg)
Patella pellucida on Laminaria ochroleuca.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_helpel3.jpg)
Patella pellucida on a blade of kelp.
Copyright: Peter Barfield
![](/assets/images/marlin/species/web/o_helpel8.jpg)
Patella pellucida on kelp showing its grazing trails.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_helpel9.jpg)
Patella pellucida on some damaged kelp.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_helpel5.jpg)
Patella pellucida on some kelp.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_helpel7.jpg)
Four Patella pellucida on kelp.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_dfenwick20060128_1.jpg)
Shell of the china limpet on rocky shore
Copyright: David Fenwick Snr.
![](/assets/images/marlin/species/web/o_dfenwick20090228_2.jpg)
Barnacle-covered shell of the china limpet on rocky shore
Copyright: David Fenwick Snr.
![](/assets/images/marlin/species/web/o_patuly.jpg)
Foot and underside of Patella ulyssiponensis.
Copyright: MarClim
![](/assets/images/marlin/species/web/o_dfenwick20060302_1.jpg)
Inside of china limpet shell showing foot and mouth
Copyright: David Fenwick Snr.
![](/assets/images/marlin/species/web/o_dfenwick20060128_2.jpg)
Inside of china limpet shell with animal removed
Copyright: David Fenwick Snr.
![](/assets/images/marlin/species/web/o_patvul.jpg)
Patella vulgata on rock.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_patvul3.jpg)
Patella vulgata showing its muscular foot while being grasped by a dog whelk.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_patvul2.jpg)
A gathering of Patella vulgata.
Copyright: Peter Barfield
![](/assets/images/marlin/species/web/o_patvul4.jpg)
Four Patella vulgata individuals.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_pnewland-20120303patellavulgata.jpg)
Patella vulgata on the move; showing the muscular foot and fringing pallial tentacles
Copyright: Paul Newland
![](/assets/images/marlin/species/web/o_pecmax.jpg)
Great scallop, Pecten maximus, and maerl.
Copyright: Sue Scott
![](/assets/images/marlin/species/web/o_pecmax8.jpg)
Pecten maximus in Doune.
Copyright: Fiona Crouch
![](/assets/images/marlin/species/web/o_apearson20110621_6.jpg)
Pecten maximus in front of eelgrass
Copyright: Andrew Pearson
![](/assets/images/marlin/species/web/o_pecmax7.jpg)
Pecten maximus shells.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_aeqope3.jpg)
Pecten maximus shells.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_pecmax4.jpg)
Pecten maximus swimming.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_pecmax5.jpg)
Close up of the Great Scallop Pecten maximus showing the mantle.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_pecmax2.jpg)
Great scallop ( Pecten maximus) on a gravel bank at the Manacles, southwest Cornwall.
Copyright: Robert Keen
![](/assets/images/marlin/species/web/o_pecmax3.jpg)
The great scallop in sediment.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_petpho.jpg)
External view of Petricolaria pholadiformis valve.
Copyright: Amgueddfa Cymru - Museum Wales
![](/assets/images/marlin/species/web/o_petpho2.jpg)
Petricolaria pholadiformis in situ.
Copyright: Amgueddfa Cymru - Museum Wales
![](/assets/images/marlin/species/web/o_petpho3.jpg)
Internal view of Petricolaria pholadiformis valve.
Copyright: Amgueddfa Cymru - Museum Wales
![](/assets/images/marlin/species/web/o_phapel.jpg)
External view of Phaxas pellucidus valve.
Copyright: Amgueddfa Cymru - Museum Wales
![](/assets/images/marlin/species/web/o_phapel4.jpg)
Phaxas pellucidus lying on top of a sandy shore.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_phapel3.jpg)
Phaxas pellucidus on a black background.
Copyright: Dr Hilmar Hinz
![](/assets/images/marlin/species/web/o_phapel6.jpg)
Phaxas pellucidus protruding from its burrow.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_phapel2.jpg)
Phaxas pellucidus.
Copyright: Peter Barfield
![](/assets/images/marlin/species/web/o_phapel5.jpg)
Tip of Phaxas pellucidus showing out of its burrow.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_phiape.jpg)
Philine aperta on sediment surface.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_phiape2.jpg)
Group of Philine aperta on the sediment surface.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_pnewland20090523.jpg)
The lobe shell Philine aperta in sandy substrate.
Copyright: Paul Newland
![](/assets/images/marlin/species/web/o_pnewland20090521.jpg)
The lobe shell Philine aperta, partly buried in sand.
Copyright: Paul Newland
![](/assets/images/marlin/species/web/o_phodac2.jpg)
Large specimen of Pholas dactylus from off Mumbles Head.
Copyright: Jon Moore
![](/assets/images/marlin/species/web/o_phodac4.jpg)
The common piddock Pholas dactylus, South Wales.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_osilin.jpg)
Phorcus lineatus on intertidal rock.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_osilin6.jpg)
Phorcus lineatus on a barnacle covered rock.
Copyright: Peter Barfield
![](/assets/images/marlin/species/web/o_osilin9.jpg)
Phorcus lineatus on a barnacle covered rock.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_osilin8.jpg)
Phorcus lineatus on a rock.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_osilin7.jpg)
Phorcus lineatus upturned on a rock.
Copyright: Peter Barfield
![](/assets/images/marlin/species/web/o_osilin4.jpg)
Close up view of aperture.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_osilin10.jpg)
Dull-coloured Phorcus lineatus on a rocky shore.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_osilin3.jpg)
Group of Phorcus lineatus on emmersed mid shore rock.
Copyright: Dr Harvey Tyler-Walters
![](/assets/images/marlin/species/web/o_osilin2.jpg)
Two Phorcus lineatus on rock.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_plemem.jpg)
Pleurobranchus membranaceus at Lyme Bay.
Copyright: Mike Markey
![](/assets/images/marlin/species/web/o_plemem2.jpg)
Pleurobranchus membranaceus with eggs, Lyme Bay.
Copyright: Mike Markey
![](/assets/images/marlin/species/web/o_dfenwick20090426_1.jpg)
Aperture and spire of the common spire shell
Copyright: David Fenwick Snr.
![](/assets/images/marlin/species/web/o_dfenwick20090426_2.jpg)
Right side of common spire shell
Copyright: David Fenwick Snr.
![](/assets/images/marlin/species/web/o_rosmac.jpg)
Close up of the head of Rossia macrosoma.
Copyright: Dr Hilmar Hinz
![](/assets/images/marlin/species/web/o_rosmac3.jpg)
Rossia macrosoma on a black background.
Copyright: Dr Hilmar Hinz
![](/assets/images/marlin/species/web/o_rosmac2.jpg)
Close up of the head and tentacles of Rossia macrosoma.
Copyright: Dr Hilmar Hinz
![](/assets/images/marlin/species/web/o_rosmac4.jpg)
Line drawing of Rossia macrosoma.
Copyright: FAO (Food and Agriculture Organization of the United Nations)
![](/assets/images/marlin/species/web/o_rosrub.jpg)
Rostanga rubra.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_rosrub2.jpg)
Rostanga rubra at Scapa Flow, Orkneys.
Copyright: Robert Keen
![](/assets/images/marlin/species/web/o_tapdec.jpg)
External view of Ruditapes decussatus valve.
Copyright: Amgueddfa Cymru - Museum Wales
![](/assets/images/marlin/species/web/o_tapdec2.jpg)
Internal view of Ruditapes decussatus valve.
Copyright: Amgueddfa Cymru - Museum Wales
![](/assets/images/marlin/species/web/o_tapdec3.jpg)
Internal view of Ruditapes decussatus valve.
Copyright: Amgueddfa Cymru - Museum Wales
![](/assets/images/marlin/species/web/o_tapphi.jpg)
External view of Ruditapes philippinarum valve.
Copyright: Terry Wimbleton
![](/assets/images/marlin/species/web/o_tapphi2.jpg)
Side profile of lunule and ligament of Ruditapes philippinarum.
Copyright: Terry Wimbleton
![](/assets/images/marlin/species/web/o_runcor.jpg)
Runcina coronata in a rockpool.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_scrpla.jpg)
A number of Scrobicularia plana being dug out of coarse sediment.
Copyright: Joint Nature Conservation Committee (JNCC)
![](/assets/images/marlin/species/web/o_dfenwick20040117_3.jpg)
Closeup of the hinge of one valve of the peppery furrow shell
Copyright: David Fenwick Snr.
![](/assets/images/marlin/species/web/o_dfenwick20040117_2.jpg)
Interior of one valve of the peppery furrow shell
Copyright: David Fenwick Snr.
![](/assets/images/marlin/species/web/o_dfenwick20040117_1.jpg)
One valve of the peppery furrow shell
Copyright: David Fenwick Snr.
![](/assets/images/marlin/species/web/o_scrpla2.jpg)
Overhead shot of star shaped depressions left by siphons of Scrobicularia plana.
Copyright: Joint Nature Conservation Committee (JNCC)
![](/assets/images/marlin/species/web/o_sepele.jpg)
Line drawing of Sepia elegans.
Copyright: FAO (Food and Agriculture Organization of the United Nations)
![](/assets/images/marlin/species/web/o_bseeley20120601.jpg)
Front view of Sepia elegans
Copyright: Becky Seeley
![](/assets/images/marlin/species/web/o_bseeley20120601_1.jpg)
Side view of Sepia elegans
Copyright: Becky Seeley
![](/assets/images/marlin/species/web/o_sepoff.jpg)
Two individuals hovering over the sea bed.
Copyright: Marine Biological Association of the UK (MBA)
![](/assets/images/marlin/species/web/o_sepoff12.jpg)
Sepia officinalis bone.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_sepoff8.jpg)
Sepia officinalis juveniles bred in a laboratory.
Copyright: John Rundle
![](/assets/images/marlin/species/web/o_sepoff10.jpg)
Sepia officinalis lying on a cobble seabed.
Copyright: Fiona Crouch
![](/assets/images/marlin/species/web/o_sepoff5.jpg)
Sepia officinalis squirting ink.
Copyright: John Rundle
![](/assets/images/marlin/species/web/o_sepoff6.jpg)
Sepia officinalis with its eggs.
Copyright: John Rundle
![](/assets/images/marlin/species/web/o_sepoff_eggs2.jpg)
Dark eggs of Sepia officinalis.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_sepoff_eggs3.jpg)
Detached eggs of Sepia officinalis at different growth stages.
Copyright: John Rundle
![](/assets/images/marlin/species/web/o_sepoff_eggs.jpg)
Eggs of common cuttlefish on Sargassum muticum.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_sepoff7.jpg)
Female Sepia officinalis in a laboratory.
Copyright: John Rundle
![](/assets/images/marlin/species/web/o_sepoff9.jpg)
Head of Sepia officinalis with its eggs.
Copyright: John Rundle
![](/assets/images/marlin/species/web/o_sepoff3.jpg)
Individual burying in gravel.
Copyright: Paul Naylor
![](/assets/images/marlin/species/web/o_sepoff11.jpg)
Pair of Sepia officinalis hovering over the seabed.
Copyright: Fiona Crouch
![](/assets/images/marlin/species/web/o_sepoff4.jpg)
Side view of entire individual.
Copyright: Marine Biological Association of the UK (MBA)
![](/assets/images/marlin/species/web/o_sepoff2.jpg)
Two individuals.
Copyright: Marine Biological Association of the UK (MBA)
![](/assets/images/marlin/species/web/o_sepowe.jpg)
Line drawing of Sepietta oweniana.
Copyright: FAO (Food and Agriculture Organization of the United Nations)
![](/assets/images/marlin/species/web/o_glang20101113.jpg)
Sepiola atlantica
Copyright: Gordon Lang
![](/assets/images/marlin/species/web/o_sepatl4.jpg)
Sepiola atlantica on a green background.
Copyright: Dr Hilmar Hinz
![](/assets/images/marlin/species/web/o_cmcnaughton20101021.jpg)
a number of recently hatched Sepolia atlantica.
Copyright: Cathal McNaughton
![](/assets/images/marlin/species/web/o_sepatl5.jpg)
Head region of Sepiola atlantica.
Copyright: Dr Hilmar Hinz
![](/assets/images/marlin/species/web/o_sepatl6.jpg)
Highly pigmented Sepiola atlantica.
Copyright: Dr Hilmar Hinz
![](/assets/images/marlin/species/web/o_sepatl2.jpg)
Individual Sepiola atlantica on gravel.
Copyright: Paul Naylor
![](/assets/images/marlin/species/web/o_sepatl3.jpg)
Line drawing of Sepiola atlantica.
Copyright: FAO (Food and Agriculture Organization of the United Nations)
![](/assets/images/marlin/species/web/o_sepron.jpg)
Line drawing of Sepiola rondeletii.
Copyright: FAO (Food and Agriculture Organization of the United Nations)
![](/assets/images/marlin/species/web/o_simpat.jpg)
The carnivorous snail Simnia patula.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_simpat4.jpg)
Simnia patula on Alcyonium digitatum.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_simpat3.jpg)
Simnia patula on Eunicella verrucosa at Lundy.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_simpat5.jpg)
Simnia patula on its prey - close up view.
Copyright: Fiona Crouch
![](/assets/images/marlin/species/web/o_simpat6.jpg)
Simnia patula on its prey.
Copyright: Fiona Crouch
![](/assets/images/marlin/species/web/o_djones20110729_1.jpg)
Simnia patula on white sea fan
Copyright: Dylan Jones
![](/assets/images/marlin/species/web/o_simpat2.jpg)
The carnivorous snail Simnia patula with its eggs on its prey, Alcyonium digitatum.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_spiell.jpg)
External view of Spisula elliptica valve.
Copyright: Amgueddfa Cymru - Museum Wales
![](/assets/images/marlin/species/web/o_spiell2.jpg)
Internal view of Spisula elliptica valve.
Copyright: Amgueddfa Cymru - Museum Wales
![](/assets/images/marlin/species/web/o_spisol.jpg)
The surf clam Spisula solida.
Copyright: Bob Williams
![](/assets/images/marlin/species/web/o_spisolidissima.jpg)
External view of Spisula solidissima valve.
Copyright: Amgueddfa Cymru - Museum Wales
![](/assets/images/marlin/species/web/o_spisolidissima2.jpg)
Internal view of Spisula solidissima valve.
Copyright: Amgueddfa Cymru - Museum Wales
![](/assets/images/marlin/species/web/o_gibcin.jpg)
Gibbula cineraria, the grey top shell.
Copyright: Sue Daly
![](/assets/images/marlin/species/web/o_tpearman20110401.jpg)
Grey top shell Gibbula cineraria showing operculum
Copyright: Tabitha Pearman
![](/assets/images/marlin/species/web/o_gibumb.jpg)
Gibbula umbilicalis, flat top shell.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_gibumb8.jpg)
Lone Gibbula umbilicalis on a rock.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_gibumb3.jpg)
The topshell Gibbula umbilicalis amongst dog whelks.
Copyright: Peter Barfield
![](/assets/images/marlin/species/web/o_gibumb5.jpg)
The topshell Gibbula umbilicalis upturned on a rock showing its operculum.
Copyright: Peter Barfield
![](/assets/images/marlin/species/web/o_gibumb4.jpg)
The topshell Gibbula umbilicalis upturned on a rock.
Copyright: Peter Barfield
![](/assets/images/marlin/species/web/o_gibumb7.jpg)
Three mature Gibbula umbilicalis individuals.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_gibumb6.jpg)
Underside of Gibbula umbilicalis showing the operculum.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_gibumb9.jpg)
Varying forms of Gibbula umbilicalis - view 1.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_gibumb10.jpg)
Varying forms of Gibbula umbilicalis - view 2.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_telfer.jpg)
External view of Tellimya ferruginosa valve.
Copyright: Amgueddfa Cymru - Museum Wales
![](/assets/images/marlin/species/web/o_telfer4.jpg)
Tellimya ferruginosa in a laboratory.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_telfer3.jpg)
Tellimya ferruginosa on a black background.
Copyright: Dr Hilmar Hinz
![](/assets/images/marlin/species/web/o_telfer2.jpg)
Internal view of Tellimya ferruginosa valves.
Copyright: Amgueddfa Cymru - Museum Wales
![](/assets/images/marlin/species/web/o_tenads.jpg)
Tenellia adspersa crawling on Ruppia with the mollusc Rissoa membranacea.
Copyright: Dennis R. Seaward
![](/assets/images/marlin/species/web/o_tenads2.jpg)
Tenellia adspersa
Copyright: Dennis R. Seaward
![](/assets/images/marlin/species/web/o_tenads3.jpg)
Two animals crawling on Zostera and Obelia.
Copyright: Dennis R. Seaward
![](/assets/images/marlin/species/web/o_tectes.jpg)
The limpet Tectura testudinalis.
Copyright: MarClim
![](/assets/images/marlin/species/web/o_tectes5.jpg)
Tectura testudinalis on a barnacle covered rock.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_tectes4.jpg)
Tectura testudinalis on a rock.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_tectes2.jpg)
Common tortoiseshell limpet on stones at low water in Scotland.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_tectes3.jpg)
Tortoiseshell limpet, Tectura testudinalis.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_thrcon.jpg)
External view of Thracia convexa valve.
Copyright: Amgueddfa Cymru - Museum Wales
![](/assets/images/marlin/species/web/o_thrvil.jpg)
External view of Thracia villosiuscula valve.
Copyright: Amgueddfa Cymru - Museum Wales
![](/assets/images/marlin/species/web/o_thygou.jpg)
External view of Thyasira gouldii valve.
Copyright: Amgueddfa Cymru - Museum Wales
![](/assets/images/marlin/species/web/o_timova.jpg)
The oval venus, Timoclea ovata.
Copyright: Peter Barfield
![](/assets/images/marlin/species/web/o_todebl.jpg)
Line drawing of Todaropsis eblanae.
Copyright: FAO (Food and Agriculture Organization of the United Nations)
![](/assets/images/marlin/species/web/o_tonmar.jpg)
Tonicella marmorea
Copyright: Sue Scott
![](/assets/images/marlin/species/web/o_tonmar2.jpg)
Tonicella marmorea
Copyright: Paul Naylor
![](/assets/images/marlin/species/web/o_tramac.jpg)
The rare sea slug Trapania maculata.
Copyright: Rob Spray and Dawn Watson
![](/assets/images/marlin/species/web/o_dfenwick20040105_11.jpg)
Aperture and ventral side of pheasant shell
Copyright: David Fenwick Snr.
![](/assets/images/marlin/species/web/o_dfenwick20040105_12.jpg)
Right side of pheasant shell
Copyright: David Fenwick Snr.
![](/assets/images/marlin/species/web/o_dfenwick20040105_10.jpg)
Three pheasant shells, showing diversity in colour
Copyright: David Fenwick Snr.
![](/assets/images/marlin/species/web/o_nasinc2.jpg)
Four brownish Tritia incrassata individuals.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_nasinc.jpg)
Bright pink Tritia incrassata.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_pnewland20090622_3.jpg)
A mobile netted dog whelk displaying siphon and tentacles.
Copyright: Paul Newland
![](/assets/images/marlin/species/web/o_khiscock20070824.jpg)
Tritia reticulata on gravel.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_hininc2.jpg)
Tritia reticulata with eggs at 40 m depth.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_pnewland20090523_6.jpg)
A swarm of netted dog whelks feeding on a dead spider crab.
Copyright: Paul Newland
![](/assets/images/marlin/species/web/o_dfenwick20090206_4.jpg)
Aperture of the netted dog whelk
Copyright: David Fenwick Snr.
![](/assets/images/marlin/species/web/o_dfenwick20090410_1.jpg)
Egg case of netted dog whelk showing individual eggs inside
Copyright: David Fenwick Snr.
![](/assets/images/marlin/species/web/o_dfenwick20090223_1.jpg)
Egg cases of netted dog whelk on intertidal rock
Copyright: David Fenwick Snr.
![](/assets/images/marlin/species/web/o_hinret_eggs.jpg)
Flat, vase-shaped egg capsules of Tritia reticulata.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_dfenwick20050919_1.jpg)
Netted dog whelk on intertidal rock
Copyright: David Fenwick Snr.
![](/assets/images/marlin/species/web/o_dfenwick20090206_3.jpg)
Shell of the netted dog whelk
Copyright: David Fenwick Snr.
![](/assets/images/marlin/species/web/o_dfenwick20090206_8.jpg)
Shell of the netted dog whelk
Copyright: David Fenwick Snr.
![](/assets/images/marlin/species/web/o_tpearman-nassarius-reticulatus3-2013-03-10.jpg)
The netted whelk on sediment.
Copyright: Tabitha Pearman
![](/assets/images/marlin/species/web/o_hininc.jpg)
The thick-lipped dog whelk Tritia reticulata.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_trihom.jpg)
Tritonia hombergi with eggs.
Copyright: Sue Scott
![](/assets/images/marlin/species/web/o_trihom4.jpg)
Tritonia hombergi amongst brittle stars.
Copyright: Paul Naylor
![](/assets/images/marlin/species/web/o_trihom5.jpg)
Tritonia hombergi at Morris Rogue reef near Torbay, at 12 m depth.
Copyright: Paul Newland
![](/assets/images/marlin/species/web/o_trihom6.jpg)
Tritonia hombergi at Tucker Rock near Torbay, at 13 m depth.
Copyright: Paul Newland
![](/assets/images/marlin/species/web/o_trihom7.jpg)
Sea slug egg mass, probably of Tritonia hombergi.
Copyright: Paul Newland
![](/assets/images/marlin/species/web/o_trihom2.jpg)
Small Tritonia hombergi feeding on dead man's fingers Alcyonium digitatum.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_triarc.jpg)
The Arctic cowrie Trivia arctica.
Copyright: Sue Scott
![](/assets/images/marlin/species/web/o_triarc3.jpg)
Trivia arctica at Firestone Bay, Plymouth Sound.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_triarc4.jpg)
Trivia arctica in the intertidal.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_triarc2.jpg)
Arctic cowrie.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_trimon.jpg)
Trivia monacha at Scapa Flow, Orkneys.
Copyright: Robert Keen
![](/assets/images/marlin/species/web/o_trimon2.jpg)
Trivia monacha at Scapa Flow, Orkneys.
Copyright: Robert Keen
![](/assets/images/marlin/species/web/o_trimon7.jpg)
Trivia monacha grouped together in a crevice.
Copyright: Peter Barfield
![](/assets/images/marlin/species/web/o_trimon8.jpg)
Trivia monacha in a rockpool.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_trimon5.jpg)
Trivia monacha on the Isles of Scilly.
Copyright: Robert Keen
![](/assets/images/marlin/species/web/o_trimon6.jpg)
Trivia monacha with distinctive yellow mantle.
Copyright: MarLIN
![](/assets/images/marlin/species/web/o_hlatham200xxxxx_3.jpg)
Empty shell of the cowrie Trivia monacha.
Copyright: Holly Latham
![](/assets/images/marlin/species/web/o_trusub.jpg)
One juvenile crawling shell and 5 adults of Truncatella subcylindrica. Also one shell of Paludinella litorina.
Copyright: Dennis R. Seaward
![](/assets/images/marlin/species/web/o_trusub3.jpg)
Line drawing of Truncatella subcylindrica.
Copyright: Dr R.S.K. Barnes
![](/assets/images/marlin/species/web/o_trusub2.jpg)
Two adult Truncatella subcylindrica, one crawling.
Copyright: Dennis R. Seaward
![](/assets/images/marlin/species/web/o_turcom.jpg)
Turritella communis on sediment.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_turcom4.jpg)
Turritella communis shell lying in sand.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_turcom5.jpg)
Turritella communis shell on a black background.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_turcom2.jpg)
Two Turritella communis on sediment.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_corgib.jpg)
Varicorbula gibba.
Copyright: Dr Sebastian Holmes
![](/assets/images/marlin/species/web/o_corgib5.jpg)
Varicorbula gibba on a black background.
Copyright: Dr Hilmar Hinz
![](/assets/images/marlin/species/web/o_corgib2.jpg)
Varicorbula gibba shell opened to show ligment and hinge teeth.
Copyright: Dr Sebastian Holmes
![](/assets/images/marlin/species/web/o_corgib3.jpg)
Varicorbula gibba.
Copyright: Dr Sebastian Holmes
![](/assets/images/marlin/species/web/o_venver2.jpg)
Venus verrucosa in a laboratory.
Copyright: Dr Hilmar Hinz
Images: 544