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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. [2] Ascidians are characterized by a tough outer test or "tunic" made of the polysaccharide cellulose .
Didemnum molle is a suspension feeder.Water is drawn into the body of each zooid through the numerous buccal siphons, phytoplankton, zooplankton and fine organic particles are filtered out and the water is exhaled through the atrial siphon.
Botryllus schlosseri (class Ascidiacea) is a colonial tunicate, a member of the only group of chordates that are able to reproduce both sexually and asexually. B. schlosseri is a sequential (protogynous) hermaphrodite, and in a colony, eggs are ovulated about two days before the peak of sperm emission. [ 60 ]
Ascidiidae ("same-sac family") is a family of tunicates in the class Ascidiacea. [1] [2] Some species contain elevated amounts of vanadium. There are 4 genera: Ascidia; Ascidiella; Fimbrora; Phallusia; Psammascidia
1 Characteristics. 2 Taxonomy. 3 References. ... Phlebobranchia is an order of sea squirts in the class Ascidiacea, [1] first described by Fernando Lahille in 1886. [2]
Monniot, C. (2001). Ascidiacea & Sorberacea, in: Costello, M. J. et al. (Ed.) (2001). European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification. Collection Patrimoines Naturels, 50: pp. 352–355; Sanamyan, K. (2007). Database of extant Ascidiacea. Version of 2 ...
Ciona intestinalis (sometimes known by the common name of vase tunicate) is an ascidian (sea squirt), a tunicate with very soft tunic. Its Latin name literally means "pillar of intestines", referring to the fact that its body is a soft, translucent column-like structure, resembling a mass of intestines sprouting from a rock. [1]
Herdmania momus found in Makadi Bay, Hurghada, Red Sea, Egypt Herdmania momus found in Makadi Bay, Hurghada, Red Sea, Egypt. The solitary ascidian Herdmania momus is one of the most commonly encountered species of ascidians.