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
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.
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
Tunicate
…thick, tough, and stiff. About 3,000 species of tunicate exist in the world's oceans, living mostly in shallow water. The most numerous group is the ascidians; fewer than 100 species of these are found at depths greater than 200 m (660 ft). Some are solitary animals leading a sessile existence attached to the…
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