ascidian

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Related to Ascidians: Urochordata, Bryozoans, Tunicates

ascidian

any PROTOCHORDATE of the class Ascidiacea (subphyllum Tunicata), such as the sea squirt, the adults of which are degenerate and sedentary. See also APPENDICULARIA.
References in periodicals archive ?
Hemolymph circulation in suspension-feeding ascidians undergoes a periodic reversal of flow direction between advisceral (toward the viscera) and abvisceral (toward the branchial basket).
Different bivalve, ascidian (tunicate) and polychaete species have been found to be the primary host for haplosporidian parasites.
2004) Neurogenic and non-neurogenic placodes in ascidians.
Studies on the seasonal variations in the proximate composition of ascidians from the Palk Bay, southeast coast of India.
However, after 10 months, the paint failed completely; serpulidae, barnacles, bryozoans, and ascidians were found to be attached to the panels' surface.
As far as we know, human consumption of ascidians as a table food occurs in Japan and Chile.
while later colonizers included the ascidians Aplidium pallidum and Ascidia callosa (Witman, 1998).
establishing the symbiotic relationship with ascidians, and, if so,
Ascidians are marine invertebrate chordates, some of which are classic model organisms for the study of development and evolution (Conklin 1905; Berrill 1932; Satoh 1994; Corbo et al.
The nature of the local environment has been a major drawcard but it still comes as a surprise to hear non-scientists in the town chatter knowledgeably and proudly about such things as ascidians, sponges and rhodolith beds.
tens of meters of continuous habitat) were found to be dominated by bryozoans, sponges, and ascidians (F.