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  1. Home
  2. Gallery
  3. Species gallery - Ascidiacea

Species Gallery (Ascidiacea)

The links below will open a large version of the image in an overlay

Lone Ascidia conchilega on a silty seabed.

Copyright: Lin Baldock

Ascidia mentula on a rock wall with Bispura volutacornis, Abereiddy Quarry, Pembrokeshire.

Copyright: Dr Keith Hiscock

Ascidia mentula

Copyright: Dr Keith Hiscock

Ascidia mentula covered in silt.

Copyright: Paul Newland

Close-up of Ascidiella aspersa growing on marina pontoon.

Copyright: Judith Oakley

Ascidiella scabra.

Copyright: Dr Hilmar Hinz

Botrylloides leachii.

Copyright: Dr Keith Hiscock

Botrylloides leachii growing over a kelp holdfast

Copyright: Gordon Lang

Botrylloides leachii on bedrock.

Copyright: Dr Keith Hiscock

Botrylloides leachii under a boulder.

Copyright: Judith Oakley

Botrylloides violaceus from marina pontoon.

Copyright: Judith Oakley

Botrylloides violaceus from marina pontoon.

Copyright: Judith Oakley

Exposed Botrylloides violaceus.

Copyright: Judith Oakley

Colony of Botryllus schlosseri on rock.

Copyright: Dr Keith Hiscock

Botryllus schlosseri and Calliostoma zizyphinum.

Copyright: Dr Keith Hiscock

Botryllus schlosseri at Skomer Island.

Copyright: Judith Oakley

Botryllus schlosseri on a rocky shore.

Copyright: Judith Oakley

Botryllus schlosseri over Styela clava.

Copyright: Judith Oakley

Botryllus schlosseri under an overhang.

Copyright: Judith Oakley

Botryllus schlosseri.

Copyright: Dr Keith Hiscock

Botryllus schlosseri.

Copyright: Dr Keith Hiscock

Botryllus schlosseri. Most likely a transparent colony growing on red algae.

Copyright: Judith Oakley

A blue morph star ascidian.

Copyright: Judith Oakley

Dark coloured Botryllus schlosseri.

Copyright: Judith Oakley

The colonial sea squirt Botryllus schlosseri.

Copyright: Dr Keith Hiscock

The solitary sea squirt Ciona intestinalis.

Copyright: Dr Keith Hiscock

Ciona intestinalis and a few Clavelina lepadiformis.

Copyright: Judith Oakley

Ciona intestinalis in shallow waters.

Copyright: Judith Oakley

Close up view of a Ciona intestinalis individual.

Copyright: John Rundle

Dense aggregation of Ciona intestinalis.

Copyright: Sue Scott

Dense aggregation of Ciona intestinalis.

Copyright: Sue Scott

Clavelina lepadiformis.

Copyright: Dr Keith Hiscock

Clavelina lepadiformis

Copyright: Dr Keith Hiscock

Clavelina lepadiformis in deeper water.

Copyright: Judith Oakley

Clavelina lepadiformis on the sea shore.

Copyright: Judith Oakley

Clavelina lepadiformis patch on a sedimented seabed.

Copyright: Paul Newland

Close up of Clavelina lepadiformis.

Copyright: Dr Keith Hiscock

Light bulb sea squirts and feather stars.

Copyright: Dr Keith Hiscock

Small group of Clavelina lepadiformis.

Copyright: Dr Keith Hiscock

Corella eumyota, an invasive species.

Copyright: Judith Oakley

Corella eumyota on a rocky shore.

Copyright: Judith Oakley

Corella eumyota at Wembury.

Copyright: Judith Oakley

Corella parallelograma

Copyright: Dr Keith Hiscock

Colony of Dendrodoa grossularia on rock surface.

Copyright: Dr Keith Hiscock

Dendrodoa grossularia covered in particles.

Copyright: Fiona Crouch

Dendrodoa grossularia exposed on a rocky shore.

Copyright: Judith Oakley

Baked bean sea squirt on an overhang.

Copyright: Dr Keith Hiscock

Baked bean sea squirts and feather stars dominating rock above a overhang.

Copyright: Dr Keith Hiscock

Close up of Dendrodoa grossularia.

Copyright: Dr Keith Hiscock

Wall of Dendrodoa grossularia.

Copyright: Judith Oakley

Diazona violacea, football sea squirt at ca. 20 m, Trintiy Rock, Isles of Scilly.

Copyright: Dr Keith Hiscock

Diazona violacea

Copyright: Paul Newland

Diazona violacea, football sea squirt with sea fan Swiftia pallida.

Copyright: Sue Scott

A colony of Diazona violacea on the sea floor.

Copyright: Paul Newland

Close up of Diazona violacea, football sea squirt.

Copyright: Dr Keith Hiscock

Football seasquirt colony.

Copyright: Paul Newland

The invasive sea squirt Didemnum vexillum, found on a pontoon in the River Dart.

Copyright: Fiona Crouch

The invasive sea squirt Didemnum vexillum, found on a pontoon in the River Dart.

Copyright: Fiona Crouch

Diplosoma listerianum.

Copyright: Fiona Crouch

Lesser gooseberry sea squirt Distomus variolosus.

Copyright: Dr Keith Hiscock

Distomus variolosus on rocks

Copyright: Dr Keith Hiscock

The lesser gooseberry sea squirt Distomus variolosus growing on the stipe of Laminaria hyperborea.

Copyright: Judith Oakley

Molgula manhattensis dominated seabed, Middle Channel Rocks, entrance to Milford Haven.

Copyright: Dr Keith Hiscock

Sea grapes Molgula manhattensis.

Copyright: Judith Oakley

Colonies of Morchellium argus.

Copyright: Paul Newland

Colony of Perophora japonica on fucoid alga.

Copyright: Marine Biological Association of the UK (MBA)

Perophora japonica growing on Ascidiella aspersa.

Copyright: Judith Oakley

Perophora japonica growing on rope hanging from marina pontoon.

Copyright: Judith Oakley

Perophora japonica on Styela clava

Copyright: Dr John Bishop

Perophora japonica terminal buds

Copyright: Dr John Bishop

Several zooids with cluster of terminal buds.

Copyright: Marine Biological Association of the UK (MBA)

Single zooid and terminal buds at high magnification.

Copyright: Marine Biological Association of the UK (MBA)

Whole colony of Perophora japonica on fucoid alga.

Copyright: Marine Biological Association of the UK (MBA)

Colony of Stolonica socialis

Copyright: Dr Keith Hiscock

Stolonica socialis at Stoke Point.

Copyright: Dr Keith Hiscock

Styela clava attached to rock. Firestone Bay, Plymouth.

Copyright: Dr Keith Hiscock

Diplosoma spp. growing on Styela clava with adjacent Bugula neritoides, an invasive bryozoan.

Copyright: Judith Oakley

Styela clava growing on buoy rope in marina.

Copyright: Judith Oakley

Styela clava specimen from marina pontoon in south Devon.

Copyright: Judith Oakley

Styela clava under boulder on shore.

Copyright: Judith Oakley

Styela clava under intertidal overhang.

Copyright: Judith Oakley

Styela clava with Clavelina lepadiformis growing on a marina pontoon.

Copyright: Judith Oakley

Styela clava with an anemone attached.

Copyright: Judith Oakley

Styela clava.

Copyright: Dr Keith Hiscock

Styela clava.

Copyright: Judith Oakley

Images: 85

Lone Ascidia conchilega on a silty seabed.

Modal: Lone <i>Ascidia conchilega</i> on a silty seabed.

Photographer: Lin Baldock, Copyright: Lin Baldock

Ascidia mentula on a rock wall with Bispura volutacornis, Abereiddy Quarry, Pembrokeshire.

Modal: <i>Ascidia mentula</i> on a rock wall with <i>Bispura volutacornis</i>, Abereiddy Quarry, Pembrokeshire.

Photographer: Dr Keith Hiscock, Copyright: Dr Keith Hiscock

Ascidia mentula

Modal: <i>Ascidia mentula</i>

Photographer: Dr Keith Hiscock, Copyright: Dr Keith Hiscock

Ascidia mentula covered in silt.

Modal: <i>Ascidia mentula</i> covered in silt.

Photographer: Paul Newland, Copyright: Paul Newland

Close-up of Ascidiella aspersa growing on marina pontoon.

Modal: Close-up of <i>Ascidiella aspersa</i> growing on marina pontoon.

Photographer: Judith Oakley, Copyright: Judith Oakley

Ascidiella scabra.

Modal: <i>Ascidiella scabra</i>.

Photographer: Hilmar Hinz, Copyright: Dr Hilmar Hinz

Botrylloides leachii.

Modal: <i>Botrylloides leachii</i>.

Photographer: Dr Keith Hiscock, Copyright: Dr Keith Hiscock

Botrylloides leachii growing over a kelp holdfast

Modal: <i>Botrylloides leachii</i> growing over a kelp holdfast

Photographer: Gordon Lang, Copyright: Gordon Lang

Botrylloides leachii on bedrock.

Modal: <i>Botrylloides leachii</i> on bedrock.

Photographer: Dr Keith Hiscock, Copyright: Dr Keith Hiscock

Botrylloides leachii under a boulder.

Modal: <i>Botrylloides leachii</i> under a boulder.

Photographer: Judith Oakley, Copyright: Judith Oakley

Botrylloides violaceus from marina pontoon.

Modal: <i>Botrylloides violaceus</i> from marina pontoon.

Photographer: Judith Oakley, Copyright: Judith Oakley

Botrylloides violaceus from marina pontoon.

Modal: <i>Botrylloides violaceus</i> from marina pontoon.

Photographer: Judith Oakley, Copyright: Judith Oakley

Exposed Botrylloides violaceus.

Modal: Exposed <i>Botrylloides violaceus</i>.

Photographer: Judith Oakley, Copyright: Judith Oakley

Colony of Botryllus schlosseri on rock.

Modal: Colony of <i>Botryllus schlosseri</i> on rock.

Photographer: Dr Keith Hiscock, Copyright: Dr Keith Hiscock

Botryllus schlosseri and Calliostoma zizyphinum.

Modal: <i>Botryllus schlosseri</i> and<i> Calliostoma zizyphinum</i>.

Photographer: Dr Keith Hiscock, Copyright: Dr Keith Hiscock

Botryllus schlosseri at Skomer Island.

Modal: <i>Botryllus schlosseri</i> at Skomer Island.

Photographer: Judith Oakley, Copyright: Judith Oakley

Botryllus schlosseri on a rocky shore.

Modal: <i>Botryllus schlosseri</i> on a rocky shore.

Photographer: Judith Oakley, Copyright: Judith Oakley

Botryllus schlosseri over Styela clava.

Modal: <i>Botryllus schlosseri</i> over <i>Styela clava</i>.

Photographer: Judith Oakley, Copyright: Judith Oakley

Botryllus schlosseri under an overhang.

Modal: <i>Botryllus schlosseri</i> under an overhang.

Photographer: Judith Oakley, Copyright: Judith Oakley

Botryllus schlosseri.

Modal: <i>Botryllus schlosseri</i>.

Photographer: Dr Keith Hiscock, Copyright: Dr Keith Hiscock

Botryllus schlosseri.

Modal: <i>Botryllus schlosseri</i>.

Photographer: Dr Keith Hiscock, Copyright: Dr Keith Hiscock

Botryllus schlosseri. Most likely a transparent colony growing on red algae.

Modal: <i>Botryllus schlosseri</i>. Most likely a transparent colony growing on red algae.

Photographer: Judith Oakley, Copyright: Judith Oakley

A blue morph star ascidian.

Modal: A blue morph star ascidian.

Photographer: Judith Oakley, Copyright: Judith Oakley

Dark coloured Botryllus schlosseri.

Modal: Dark coloured <i>Botryllus schlosseri</i>.

Photographer: Judith Oakley, Copyright: Judith Oakley

The colonial sea squirt Botryllus schlosseri.

Modal: The colonial sea squirt <i>Botryllus schlosseri</i>.

Photographer: Dr Keith Hiscock, Copyright: Dr Keith Hiscock

The solitary sea squirt Ciona intestinalis.

Modal: The solitary sea squirt <i>Ciona intestinalis</i>.

Photographer: Dr Keith Hiscock, Copyright: Dr Keith Hiscock

Ciona intestinalis and a few Clavelina lepadiformis.

Modal: <i>Ciona intestinalis</i> and a few <i>Clavelina lepadiformis</i>.

Photographer: Judith Oakley, Copyright: Judith Oakley

Ciona intestinalis in shallow waters.

Modal: <i>Ciona intestinalis</i> in shallow waters.

Photographer: Judith Oakley, Copyright: Judith Oakley

Close up view of a Ciona intestinalis individual.

Modal: Close up view of a <i>Ciona intestinalis</i> individual.

Photographer: John Rundle, Copyright: John Rundle

Dense aggregation of Ciona intestinalis.

Modal: Dense aggregation of <i>Ciona intestinalis</i>.

Photographer: Sue Scott, Copyright: Sue Scott

Dense aggregation of Ciona intestinalis.

Modal: Dense aggregation of <i>Ciona intestinalis</i>.

Photographer: Sue Scott, Copyright: Sue Scott

Clavelina lepadiformis.

Modal: <i>Clavelina lepadiformis</i>.

Photographer: Dr Keith Hiscock, Copyright: Dr Keith Hiscock

Clavelina lepadiformis

Modal: <i>Clavelina lepadiformis</i>

Photographer: Dr Keith Hiscock, Copyright: Dr Keith Hiscock

Clavelina lepadiformis in deeper water.

Modal: <i>Clavelina lepadiformis</i> in deeper water.

Photographer: Judith Oakley, Copyright: Judith Oakley

Clavelina lepadiformis on the sea shore.

Modal: <i>Clavelina lepadiformis</i> on the sea shore.

Photographer: Judith Oakley, Copyright: Judith Oakley

Clavelina lepadiformis patch on a sedimented seabed.

Modal: <i>Clavelina lepadiformis</i> patch on a sedimented seabed.

Photographer: Paul Newland, Copyright: Paul Newland

Close up of Clavelina lepadiformis.

Modal: Close up of <i>Clavelina lepadiformis</i>.

Photographer: Dr Keith Hiscock, Copyright: Dr Keith Hiscock

Light bulb sea squirts and feather stars.

Modal: Light bulb sea squirts and feather stars.

Photographer: Dr Keith Hiscock, Copyright: Dr Keith Hiscock

Small group of Clavelina lepadiformis.

Modal: Small group of <i>Clavelina lepadiformis</i>.

Photographer: Dr Keith Hiscock, Copyright: Dr Keith Hiscock

Corella eumyota, an invasive species.

Modal: <i>Corella eumyota</i>, an invasive species.

Photographer: Judith Oakley, Copyright: Judith Oakley

Corella eumyota on a rocky shore.

Modal: <i>Corella eumyota</i> on a rocky shore.

Photographer: Judith Oakley, Copyright: Judith Oakley

Corella eumyota at Wembury.

Modal: <i>Corella eumyota</i> at Wembury.

Photographer: Judith Oakley, Copyright: Judith Oakley

Corella parallelograma

Modal: <em>Corella parallelograma</em>

Photographer: Dr Keith Hiscock, Copyright: Dr Keith Hiscock

Colony of Dendrodoa grossularia on rock surface.

Modal: Colony of <i>Dendrodoa grossularia</i> on rock surface.

Photographer: Dr Keith Hiscock, Copyright: Dr Keith Hiscock

Dendrodoa grossularia covered in particles.

Modal: <i>Dendrodoa grossularia</i> covered in particles.

Photographer: Fiona Crouch, Copyright: Fiona Crouch

Dendrodoa grossularia exposed on a rocky shore.

Modal: <i>Dendrodoa grossularia</i> exposed on a rocky shore.

Photographer: Judith Oakley, Copyright: Judith Oakley

Baked bean sea squirt on an overhang.

Modal: Baked bean sea squirt on an overhang.

Photographer: Dr Keith Hiscock, Copyright: Dr Keith Hiscock

Baked bean sea squirts and feather stars dominating rock above a overhang.

Modal: Baked bean sea squirts and feather stars dominating rock above a overhang.

Photographer: Dr Keith Hiscock, Copyright: Dr Keith Hiscock

Close up of Dendrodoa grossularia.

Modal: Close up of <i>Dendrodoa grossularia</i>.

Photographer: Dr Keith Hiscock, Copyright: Dr Keith Hiscock

Wall of Dendrodoa grossularia.

Modal: Wall of <i>Dendrodoa grossularia</i>.

Photographer: Judith Oakley, Copyright: Judith Oakley

Diazona violacea, football sea squirt at ca. 20 m, Trintiy Rock, Isles of Scilly.

Modal: <i>Diazona violacea</i>, football sea squirt at ca. 20 m, Trintiy Rock, Isles of Scilly.

Photographer: Dr Keith Hiscock, Copyright: Dr Keith Hiscock

Diazona violacea

Modal: <i>Diazona violacea</i>

Photographer: Paul Newland, Copyright: Paul Newland

Diazona violacea, football sea squirt with sea fan Swiftia pallida.

Modal: <i>Diazona violacea</i>, football sea squirt with sea fan <i>Swiftia pallida</i>.

Photographer: Sue Scott, Copyright: Sue Scott

A colony of Diazona violacea on the sea floor.

Modal: A colony of <i>Diazona violacea</i> on the sea floor.

Photographer: Paul Newland, Copyright: Paul Newland

Close up of Diazona violacea, football sea squirt.

Modal: Close up of <i>Diazona violacea</i>, football sea squirt.

Photographer: Dr Keith Hiscock, Copyright: Dr Keith Hiscock

Football seasquirt colony.

Modal: Football seasquirt colony.

Photographer: Paul Newland, Copyright: Paul Newland

The invasive sea squirt Didemnum vexillum, found on a pontoon in the River Dart.

Modal: The invasive sea squirt <i>Didemnum vexillum</i>, found on a pontoon in the River Dart.

Photographer: Fiona Crouch, Copyright: Fiona Crouch

The invasive sea squirt Didemnum vexillum, found on a pontoon in the River Dart.

Modal: The invasive sea squirt <i>Didemnum vexillum</i>, found on a pontoon in the River Dart.

Photographer: Fiona Crouch, Copyright: Fiona Crouch

Diplosoma listerianum.

Modal: <i>Diplosoma listerianum</i>.

Photographer: Fiona Crouch, Copyright: Fiona Crouch

Lesser gooseberry sea squirt Distomus variolosus.

Modal: Lesser gooseberry sea squirt <i>Distomus variolosus</i>.

Photographer: Dr Keith Hiscock, Copyright: Dr Keith Hiscock

Distomus variolosus on rocks

Modal: <i>Distomus variolosus</i> on rocks

Photographer: Dr Keith Hiscock, Copyright: Dr Keith Hiscock

The lesser gooseberry sea squirt Distomus variolosus growing on the stipe of Laminaria hyperborea.

Modal: The lesser gooseberry sea squirt <i>Distomus variolosus</i> growing on the stipe of <i>Laminaria hyperborea</i>.

Photographer: Judith Oakley, Copyright: Judith Oakley

Molgula manhattensis dominated seabed, Middle Channel Rocks, entrance to Milford Haven.

Modal: <i>Molgula manhattensis</i> dominated seabed, Middle Channel Rocks, entrance to Milford Haven.

Photographer: Dr Keith Hiscock, Copyright: Dr Keith Hiscock

Sea grapes Molgula manhattensis.

Modal: Sea grapes <i>Molgula manhattensis</i>.

Photographer: Judith Oakley, Copyright: Judith Oakley

Colonies of Morchellium argus.

Modal: Colonies of <i>Morchellium argus</i>.

Photographer: Paul Newland, Copyright: Paul Newland

Colony of Perophora japonica on fucoid alga.

Modal: Colony of <i>Perophora japonica</i> on fucoid alga.

Photographer: David Nicholson, Copyright: Marine Biological Association of the UK (MBA)

Perophora japonica growing on Ascidiella aspersa.

Modal: <i>Perophora japonica</i> growing on <i>Ascidiella aspersa</i>.

Photographer: Judith Oakley, Copyright: Judith Oakley

Perophora japonica growing on rope hanging from marina pontoon.

Modal: <i>Perophora japonica</i> growing on rope hanging from marina pontoon.

Photographer: Judith Oakley, Copyright: Judith Oakley

Perophora japonica on Styela clava

Modal: <i>Perophora japonica</i> on <i>Styela clava</i>

Photographer: Dr John Bishop, Copyright: Dr John Bishop

Perophora japonica terminal buds

Modal: <i>Perophora japonica</i> terminal buds

Photographer: Dr John Bishop, Copyright: Dr John Bishop

Several zooids with cluster of terminal buds.

Modal: Several zooids with cluster of terminal buds.

Photographer: Dorothea Sommerfeldt, Copyright: Marine Biological Association of the UK (MBA)

Single zooid and terminal buds at high magnification.

Modal: Single zooid and terminal buds at high magnification.

Photographer: Dorothea Sommerfeldt, Copyright: Marine Biological Association of the UK (MBA)

Whole colony of Perophora japonica on fucoid alga.

Modal: Whole colony of <i>Perophora japonica</i> on fucoid alga.

Photographer: David Nicholson, Copyright: Marine Biological Association of the UK (MBA)

Colony of Stolonica socialis

Modal: Colony of <i>Stolonica socialis</i>

Photographer: Dr Keith Hiscock, Copyright: Dr Keith Hiscock

Stolonica socialis at Stoke Point.

Modal: <i>Stolonica socialis</i> at Stoke Point.

Photographer: Dr Keith Hiscock, Copyright: Dr Keith Hiscock

Styela clava attached to rock. Firestone Bay, Plymouth.

Modal: <i>Styela clava</i> attached to rock. Firestone Bay, Plymouth.

Photographer: Dr Keith Hiscock, Copyright: Dr Keith Hiscock

Diplosoma spp. growing on Styela clava with adjacent Bugula neritoides, an invasive bryozoan.

Modal: <i>Diplosoma</i> spp. growing on <i>Styela clava</i> with adjacent <i>Bugula neritoides</i>, an invasive bryozoan.

Photographer: Judith Oakley, Copyright: Judith Oakley

Styela clava growing on buoy rope in marina.

Modal: <i>Styela clava</i> growing on buoy rope in marina.

Photographer: Judith Oakley, Copyright: Judith Oakley

Styela clava specimen from marina pontoon in south Devon.

Modal: <i>Styela clava</i> specimen from marina pontoon in south Devon.

Photographer: Judith Oakley, Copyright: Judith Oakley

Styela clava under boulder on shore.

Modal: <i>Styela clava</i> under boulder on shore.

Photographer: Judith Oakley, Copyright: Judith Oakley

Styela clava under intertidal overhang.

Modal: <i>Styela clava</i> under intertidal overhang.

Photographer: Judith Oakley, Copyright: Judith Oakley

Styela clava with Clavelina lepadiformis growing on a marina pontoon.

Modal: <i>Styela clava</i> with <i>Clavelina lepadiformis</i> growing on a marina pontoon.

Photographer: Judith Oakley, Copyright: Judith Oakley

Styela clava with an anemone attached.

Modal: <i>Styela clava</i> with an anemone attached.

Photographer: Judith Oakley, Copyright: Judith Oakley

Styela clava.

Modal: <i>Styela clava</i>.

Photographer: Dr Keith Hiscock, Copyright: Dr Keith Hiscock

Styela clava.

Modal: <i>Styela clava</i>.

Photographer: Judith Oakley, Copyright: Judith Oakley

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