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  • Unidentified colonial sea squirts, probably family Didemnidae, from Flinders Reef, the Coral Sea.
    10111.jpg
  • Clavelina robusta from Ribbon Reef, Great Barrier reef, Australia.
    10081.jpg
  • Pycnoclavella diminuta (yellow morph) from the Great Barrier Reef, Australia.
    10059.jpg
  • Large, solitary sea-squirt of the species Polycarpa pigmentata from Hook Island, Great Barrier Reef, Australia.
    10055.jpg
  • Small sea-squirts of the species Trididemnum miniatummolle growing on a larger sea-squirt (Polycarpa sp.) photographed at Ribbin Reef #9, Great B
    10027.jpg
  • Blue ascidian (Rhopalaea crassa) from Bunaken, North Sulawesi.
    10084.jpg
  • Golden ascidian (Polycarpa aurata) from Bunaken, North Sulawesi, Indonesia.
    10134.jpg
  • Green reef sea-squirts (Didemnum molle) from the Maldives.
    10018.jpg
  • Blue ascidian (Rhopalaea crassa) and small colonies of Didemnum sp. (probably D. molle). Photo from Bunaken, North Sulawesi.
    10086.jpg
  • The solitary sea-squirt Polycarpa clavata from Flinders Reef, Coral Sea.
    10043.jpg
  • Golden ascidians (Polycarpa aurata) from Bunaken, North Sulawesi, Indonesia.
    10037.jpg
  • Colony of salps photographed at Phi-Phi Island, Thailand.
    10133.jpg
  • Aplidium lenticulum (orange) and Lissoclinum sp. from the Great Barrier Reef, Australia.
    10130.jpg
  • Ecteinascidia nexa. Aquariumphoto.
    10110.jpg
  • Eudistoma sp. (?) from Bunaken, North Sulawesi, Indonesia.
    10016.jpg
  • Baked bean ascidian (Dendrodoa grossularia) from the shores off Hidra, south-western Norway.
    10010.jpg
  • Clavelina robusta. Aquarium photo.
    10012.jpg
  • A solitary sea-squirt from the genus Polycarpa photographed in the Maldives.
    10065.jpg
  • Golden ascidian (Polycarpa aurata) photographed in te Philippines.
    10047.jpg
  • Colonial tunicates of the species Botrylloides leachii from Kuredu, the Maldives.
    10014.jpg
  • Green reef sea-squirts (Didemnum molle) and other sea-squirts from family Didemnidae at Bunaken, North Sulawesi.
    10119.jpg
  • Juvenile colonial green reef sea-squirts (Didemnum molle) growing on another bigger solitary sea-squirt (Polycarpa sp.) at Siladen, North Sulawesi, Indonesia
    10118.jpg
  • Blue ascidian (Rhopalaea crassa) from Bunaken, North Sulawesi.
    10041.jpg
  • The predatory tunicate (Megalodicopia hians). Aquariumphoto.
    10001.jpg
  • Large, solitary sea-squirt of the species Polycarpa pigmentata from Hook Island, Great Barrier Reef, Australia.
    10058.jpg
  • Several colonies of the sea-squirt Didemnum cuculliferum photographed in the Maldives.
    10013.jpg
  • Symplegma reptans from Heron Island,  Great Barrier Reef, Australia.
    10074.jpg
  • Ascidian colony of the species Diplosoma simile growing entangled among coral rocks on a reef in the Philippines.
    10026.jpg
  • Blue ascidians (Rhopalaea crassa) from the Philippines.
    10022.jpg
  • Ecteinascidia bandanensis from the Maldives.
    10100.jpg
  • Star tunicates (Botryllus schlosseri) from the waters off Hidra, south-western Norway.
    10021.jpg
  • Light bulb sea squirt (Clavelina lepadiformis) from the shores of Hidra, south-western Norway.
    10011.jpg
  • Eucolium sp., from Embudu Village, the Maldives.
    10127.jpg
  • Eudistoma gilboviride from The Great Barrier Reef, Australia.
    10126.jpg
  • Lissoclinum patella from Ribbon Reef (Pixie Pinnacle), the Great Barrier Reef.
    10094.jpg
  • Eudistoma sp. (?) from Hook Island, Whitsunday Islands, Great Barrier Reef.
    10053.jpg
  • Colonial tunicates of the species Botrylloides leachii from the Maldives.
    10108.jpg
  • The solitary sea-squirts Polycarpa nigricans from the Great Barrier Reef, Australia.
    10097.jpg
  • Large, solitary sea-squirts of the species Polycarpa pigmentata (left) and Polycarpa aurata (right). Photo from Great Barrier Reef, Australia.
    10096.jpg
  • A solitary sea-squirt from the genus Polycarpa photographed in the Maldives.
    10064.jpg
  • Tiny sea-squirts (Trididemnum miniatum) from the Great Barrier Reef.
    10093.jpg
  • Green reef sea-squirts (Didemnum molle) from Bunaken, North Sulawesi, Indonesia.
    10091.jpg
  • Golden ascidian (Polycarpa aurata) from Bunaken, North Sulawesi, Indonesia.
    10063.jpg
  • Green reef sea-squirts (Didemnum molle) from the Maldives
    10006.jpg
  • The predatory tunicate (Megalodicopia hians). Aquariumphoto.
    10082.jpg
  • The predatory tunicate (Megalodicopia hians). Aquariumphoto.
    10005.jpg
  • The predatory tunicate (Megalodicopia hians). Aquariumphoto.
    10003.jpg
  • The solitary sea-squirt Polycarpa clavata from Flinders Reef, Coral Sea.
    10124.jpg
  • Symplegma reptans from Heron Island,  Great Barrier Reef, Australia.
    10007.jpg
  • Blue ascidians (Rhopalaea crassa) from the Philippines.
    10008.jpg
  • New zooids formin as the colony of sea squirts (Pycnoclavella sp.?) replicates. Aquariumphoto
    10122.jpg
  • Symplegma stuhlmanni from Heron Island, the Great Barrier Reef.
    10079.jpg
  • Light bulb sea squirt (Clavelina lepadiformis) from the shores of Hidra, south-western Norway.
    10060.jpg
  • Ascidia archaia. Aquarium photo.
    10121 as1261.jpg
  • Pycnoclavella diminuta (purple morph) from the Great Barrier reef
    10114.jpg
  • Lissoclinum patella from the Great Barrier Reef.
    10070.jpg
  • Eudistoma sp. (?) from Hook Island, Whitsunday Islands, Great Barrier Reef.
    10057.jpg
  • Clavelina moluccensis from the Great Barrier Reef, Australia.
    10051.jpg
  • Eudistoma sp. (?) from Bunaken, North Sulawesi, Indonesia.
    10039.jpg
  • Colonial tunicates of the species Botrylloides leachii growing on the lower side of a boulder at heron Island, Great Barrier Reef, Australia.
    10078.jpg
  • Blue ascidian (Rhopalaea crassa) from the Philippines.
    10024.jpg
  • Green reef sea-squirt (Didemnum molle) from the Maldives.
    10101.jpg
  • Golden ascidians (Polycarpa aurata) from Bunaken, North Sulawesi, Indonesia.
    10071.jpg
  • Golden ascidians (Polycarpa aurata) from Bunaken, North Sulawesi, Indonesia.
    10017.jpg
  • Ascidian colony of the species Diplosoma simile growing entangled among coral rocks on a shallow reef in the Maldives.
    10085.jpg
  • Blue ascidians (Rhopalaea crassa) from the Philippines.
    10004.jpg
  • Star tunicates (Botryllus schlosseri) from the waters off Hidra, south-western Norway.
    10011-D.jpg
  • Green reef sea-squirts (Didemnum molle) growing on top of another sea-squirt (Polycarpa sp.) at Bunaken, North Sulawesi.
    10117.jpg
  • Green reef sea-squirts (Didemnum molle) from Hook Island, Grteat Barier Reef, Australia.
    10054.jpg
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Alf J. Nilsen Natural History images

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