Ascidiacea
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Ascidiacea, commonly known as the ascidians or sea squirts, is a paraphyletic class in the subphylum Tunicata of sac-like marine invertebrate filter feeders. Ascidians are characterized by a tough out
Cionaintestinalis
The colorful Polycarpa aurata sits in a bed of white bryozoans (Triphyllozoon inornatum).
A tunicate group from East Timor
A colony of Didemnum molle, with budding juveniles
Tunicate
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Tunicates are marine invertebrates belonging to the subphylum Tunicata. This grouping is part of the Chordata, a phylum which includes all animals with dorsal nerve cords and notochords. The subphylum
Ascidiacea
…Ascidiacea, commonly known as the ascidians or sea squirts, is a paraphyletic class in the subphylum Tunicata of sac-like marine invertebrate filter feeders. Ascidians are characterized by a tough outer test or "tunic" made of the polysaccharide cellulose…
Tunicate komodo
Clavelina moluccensis, the bluebell tunicate
Botrylloides violaceus showing oral tentacles at openings of buccal siphons
The star-shaped holes (Catellocaula vallata) in this Upper Ordovician bryozoan may represent a tunicate preserved by bioimmuration in the bryozoan skeleton.