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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). [12] Some are solitary animals leading a sessile existence attached to the seabed, but others are colonial and a few are pelagic.
Molgula oculata, commonly known as the sea grape, is a species of solitary tunicate in the family Molgulidae. It is native to the north eastern Atlantic Ocean and the North Sea. The specific name oculata means "having eyes"; [2] the species has orifices which "seem like dark eyes within a spectacle-formed frame". [3]
In most species, females are viviparous and grow a single oozooid. [6] branchial basket. Also branchial sac, gill sac, pharyngeal sac or pharynx. Main pumping and filtering cavity of the tunicate body. It is lined with stigmata through which water is filtered. In ascidians, the branchial basket can be flat, or folded in various arrangements. [7 ...
Tunicate bibimbap is a specialty of Geoje Island, not far from Masan. [35] Microcosmus species from the Mediterranean Sea are eaten in France (figue de mer, violet), Italy (limone di mare, uova di mare) and Greece (fouska, φούσκα), for example, raw with lemon, or in salads with olive oil, lemon and parsley.
A similar edible tunicate in the Mediterranean is Microcosmus sabatieri, also called a sea violet or sea fig. [11] There are concerns about the safety of eating P. chilensis, given its high concentration of vanadium, with up to 1.9 mg/kg found in dry blood plasma. [12] Vanadium is a heavy metal, considered toxic at any more than incidental ...
Bathochordaeus, the giant larvaceans, is a genus of larvacean tunicates in the family Oikopleuridae.They are free-swimming filter-feeding marine animals that build mucus bubbles.
The subphyla Tunicata and Vertebrata are in the unranked Olfactores clade, while the subphylum Cephalochordata is not. Animals in Olfactores are characterized as having a more advanced olfactory system than animals not in it. The only extinct classes shown are Placodermi and Acanthodii. Note that there are many other extinct chordate groups ...
The predatory tunicate (Megalodicopia hians), also known as the ghostfish, [2] is a species of tunicate which lives anchored along deep-sea canyon walls and the seafloor. It is unique among other tunicates in that rather than being a filter feeder , it has adapted to life as an ambush predator .