Sorberacea are benthic animals and a subgroup of the Tunicata (Urochordata). They superficially resemble sea squirts but prey on invertebrates such as crustaceans. They also have some unique physical features that distinguish them from the ascidiaceans, including a severely reduced pharynx, the retention of the dorsal nerve cord as adults, the superficial position of their ganglion and the unique histology of the cells of their digestive tracts. The branchial syphon is large and surrounded by six large lobes; the cloacal syphon is small.They live exclusively in deep water and range in size from less than one inch (3 mm) to 2.4 inches (6 cm).
Research reports on life science from St. Francis Xavier University, Department of Biology provide new insights.(Report)
Oct 19, 2010; Research findings, 'HSP90 expression in two migratory cell types during ascidian development: test cells deposit HSP90 on the...