Pycnoclavella flava
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Pycnoclavella flava is a species of sea squirt found in New Caledonia. It can be found at depths of 0–22 m and measures up to 0.79 in.
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
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.