1. Ascidians from the North-Western Pacific region. 2. Molgulidae
- Author
-
Karen Sanamyan
- Subjects
Sponge spicule ,biology ,Ecology ,Didemnidae ,Taxonomy (biology) ,Molgulidae ,Polysyncraton ,Aquatic Science ,biology.organism_classification ,Didemnum ,Styelidae ,Ascidiacea - Abstract
Among the 13 species of didemnid ascidians collected during several expeditions in the NW Pacific, 8 are species of the genus Didemnum. Only D. papillatum Romanov and D. pseudobiglans Romanov from Commander Islands and D. vermiforme Romanov from the Sea of Japan were represented by many specimens. Most other species of the family were represented in the present material only by a few specimens. Two new species of Didemnum are described from the Alaska Gulf, 79 to 195m. One of these, as well as some colonies of Polysyncraton crassum Redikorzev, are devoid of spicules.
- Published
- 1993
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