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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 .
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
Pages in category "Ascidiacea" The following 6 pages are in this category, out of 6 total. This list may not reflect recent changes. ...
Clavelina ("little bottle") is genus of sea squirts (the Ascidiacea), containing the following species: [2] Clavelina amplexa Kott, 2002 Clavelina arafurensis Tokioka, 1952
Stolidobranchia is an order of tunicates in the class Ascidiacea. [1] The group includes both colonial and solitary animals. They are distinguished from other tunicates by the presence of folded pharyngeal baskets. This provides the etymology of their name: in ancient Greek, στολίς, ίδος means the "fold" of a cloth.
Pyura spinifera, commonly called the sea tulip, is a species of sessile ascidian that lives in coastal waters at depths of up to 80 m (260 feet). As with almost all other ascidians, sea tulips are filter feeders.
Like all tunicates, Dendrodoa grossularia is a filter feeder, drawing water in through the buccal siphon and expelling it through the exhalent siphon.It is a non-simultaneous hermaphrodite.
Ascidia incrassata, "Red spotted sea squirt".. The group includes both colonial and solitary animals. They are distinguished from other sea squirts by the presence of longitudinal vessels in the pharyngeal basket.