Species Gallery (Ascidiacea)
The links below will open a large version of the image in an overlay
![](/assets/images/marlin/species/web/o_asccon.jpg)
Lone Ascidia conchilega on a silty seabed.
Copyright: Lin Baldock
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Ascidia mentula on a rock wall with Bispura volutacornis, Abereiddy Quarry, Pembrokeshire.
Copyright: Dr Keith Hiscock
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Ascidia mentula
Copyright: Dr Keith Hiscock
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Ascidia mentula covered in silt.
Copyright: Paul Newland
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Close-up of Ascidiella aspersa growing on marina pontoon.
Copyright: Judith Oakley
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Ascidiella scabra.
Copyright: Dr Hilmar Hinz
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Botrylloides leachii.
Copyright: Dr Keith Hiscock
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Botrylloides leachii growing over a kelp holdfast
Copyright: Gordon Lang
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Botrylloides leachii on bedrock.
Copyright: Dr Keith Hiscock
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Botrylloides leachii under a boulder.
Copyright: Judith Oakley
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Botrylloides violaceus from marina pontoon.
Copyright: Judith Oakley
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Botrylloides violaceus from marina pontoon.
Copyright: Judith Oakley
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Exposed Botrylloides violaceus.
Copyright: Judith Oakley
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Colony of Botryllus schlosseri on rock.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_botsch2.jpg)
Botryllus schlosseri and Calliostoma zizyphinum.
Copyright: Dr Keith Hiscock
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Botryllus schlosseri at Skomer Island.
Copyright: Judith Oakley
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Botryllus schlosseri on a rocky shore.
Copyright: Judith Oakley
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Botryllus schlosseri over Styela clava.
Copyright: Judith Oakley
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Botryllus schlosseri under an overhang.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_botsch3.jpg)
Botryllus schlosseri.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_botsch5.jpg)
Botryllus schlosseri.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_botsch4.jpg)
Botryllus schlosseri. Most likely a transparent colony growing on red algae.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_joakley20100505_1.jpg)
A blue morph star ascidian.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_botsch7.jpg)
Dark coloured Botryllus schlosseri.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_botsch6.jpg)
The colonial sea squirt Botryllus schlosseri.
Copyright: Dr Keith Hiscock
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The solitary sea squirt Ciona intestinalis.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_cioint6.jpg)
Ciona intestinalis and a few Clavelina lepadiformis.
Copyright: Judith Oakley
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Ciona intestinalis in shallow waters.
Copyright: Judith Oakley
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Close up view of a Ciona intestinalis individual.
Copyright: John Rundle
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Dense aggregation of Ciona intestinalis.
Copyright: Sue Scott
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Dense aggregation of Ciona intestinalis.
Copyright: Sue Scott
![](/assets/images/marlin/species/web/o_clalep.jpg)
Clavelina lepadiformis.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_clalep2.jpg)
Clavelina lepadiformis
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_clalep8.jpg)
Clavelina lepadiformis in deeper water.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_clalep7.jpg)
Clavelina lepadiformis on the sea shore.
Copyright: Judith Oakley
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Clavelina lepadiformis patch on a sedimented seabed.
Copyright: Paul Newland
![](/assets/images/marlin/species/web/o_clalep5.jpg)
Close up of Clavelina lepadiformis.
Copyright: Dr Keith Hiscock
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Light bulb sea squirts and feather stars.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_clalep4.jpg)
Small group of Clavelina lepadiformis.
Copyright: Dr Keith Hiscock
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Corella eumyota, an invasive species.
Copyright: Judith Oakley
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Corella eumyota on a rocky shore.
Copyright: Judith Oakley
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Corella eumyota at Wembury.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_KHiscock_Corella_parallelograma_StromeNarrows_2021-11-02.jpg)
Corella parallelograma
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_dengro.jpg)
Colony of Dendrodoa grossularia on rock surface.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_dengro5.jpg)
Dendrodoa grossularia covered in particles.
Copyright: Fiona Crouch
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Dendrodoa grossularia exposed on a rocky shore.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_dengro2.jpg)
Baked bean sea squirt on an overhang.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_dengro3.jpg)
Baked bean sea squirts and feather stars dominating rock above a overhang.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_dengro4.jpg)
Close up of Dendrodoa grossularia.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_dengro6.jpg)
Wall of Dendrodoa grossularia.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_diavio.jpg)
Diazona violacea, football sea squirt at ca. 20 m, Trintiy Rock, Isles of Scilly.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_pnewland20090514_1.jpg)
Diazona violacea
Copyright: Paul Newland
![](/assets/images/marlin/species/web/o_diavio2.jpg)
Diazona violacea, football sea squirt with sea fan Swiftia pallida.
Copyright: Sue Scott
![](/assets/images/marlin/species/web/o_pnewland20090514.jpg)
A colony of Diazona violacea on the sea floor.
Copyright: Paul Newland
![](/assets/images/marlin/species/web/o_diavio3.jpg)
Close up of Diazona violacea, football sea squirt.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_pnewland20101119_1.jpg)
Football seasquirt colony.
Copyright: Paul Newland
![](/assets/images/marlin/species/web/o_fcrouch20091026_1.jpg)
The invasive sea squirt Didemnum vexillum, found on a pontoon in the River Dart.
Copyright: Fiona Crouch
![](/assets/images/marlin/species/web/o_fcrouch20091026_2.jpg)
The invasive sea squirt Didemnum vexillum, found on a pontoon in the River Dart.
Copyright: Fiona Crouch
![](/assets/images/marlin/species/web/o_diplis2.jpg)
Diplosoma listerianum.
Copyright: Fiona Crouch
![](/assets/images/marlin/species/web/o_disvar.jpg)
Lesser gooseberry sea squirt Distomus variolosus.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_disvar2.jpg)
Distomus variolosus on rocks
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_disvar3.jpg)
The lesser gooseberry sea squirt Distomus variolosus growing on the stipe of Laminaria hyperborea.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_molman.jpg)
Molgula manhattensis dominated seabed, Middle Channel Rocks, entrance to Milford Haven.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_molman2.jpg)
Sea grapes Molgula manhattensis.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_morarg4.jpg)
Colonies of Morchellium argus.
Copyright: Paul Newland
![](/assets/images/marlin/species/web/o_perjap.jpg)
Colony of Perophora japonica on fucoid alga.
Copyright: Marine Biological Association of the UK (MBA)
![](/assets/images/marlin/species/web/o_perjap6.jpg)
Perophora japonica growing on Ascidiella aspersa.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_perjap5.jpg)
Perophora japonica growing on rope hanging from marina pontoon.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_jbishop2010729.jpg)
Perophora japonica on Styela clava
Copyright: Dr John Bishop
![](/assets/images/marlin/species/web/o_jbishop2010729_1.jpg)
Perophora japonica terminal buds
Copyright: Dr John Bishop
![](/assets/images/marlin/species/web/o_perjap3.jpg)
Several zooids with cluster of terminal buds.
Copyright: Marine Biological Association of the UK (MBA)
![](/assets/images/marlin/species/web/o_perjap2.jpg)
Single zooid and terminal buds at high magnification.
Copyright: Marine Biological Association of the UK (MBA)
![](/assets/images/marlin/species/web/o_perjap4.jpg)
Whole colony of Perophora japonica on fucoid alga.
Copyright: Marine Biological Association of the UK (MBA)
![](/assets/images/marlin/species/web/o_stosoc2.jpg)
Colony of Stolonica socialis
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_stosoc.jpg)
Stolonica socialis at Stoke Point.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_stycla.jpg)
Styela clava attached to rock. Firestone Bay, Plymouth.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_stycla9.jpg)
Diplosoma spp. growing on Styela clava with adjacent Bugula neritoides, an invasive bryozoan.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_stycla8.jpg)
Styela clava growing on buoy rope in marina.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_stycla7.jpg)
Styela clava specimen from marina pontoon in south Devon.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_stycla5.jpg)
Styela clava under boulder on shore.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_stycla6.jpg)
Styela clava under intertidal overhang.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_stycla4.jpg)
Styela clava with Clavelina lepadiformis growing on a marina pontoon.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_stycla10.jpg)
Styela clava with an anemone attached.
Copyright: Judith Oakley
![](/assets/images/marlin/species/web/o_stycla2.jpg)
Styela clava.
Copyright: Dr Keith Hiscock
![](/assets/images/marlin/species/web/o_stycla11.jpg)
Styela clava.
Copyright: Judith Oakley
Images: 85