BIOLOGIYA MORYA, 2016, Vol. 42, No. 2, pp. 115-121 |
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Species composition and ecological features of pea crabs of the genus Pinnixa White, 1846 (Brachyura: Pinnotheridae) in Peter the Great Bay, the Sea of Japan A.N. Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, Moscow 119071 E-mail: The paper provides an overview of pea crabs of the genus Pinnixa White, 1846 (Brachyura: Pinnotheridae) occurring along the Russian coast of the Sea of Japan. Three species of the genus have been recorded for this area: P. tumida Stimpson, 1858, P. rathbuni Sakai, 1934, as well as P. banzu Komai, Nishi & Taru, 2014, which is the first record for the fauna of Russia. All species well differ ecologically: P. tumida was found in Posyet Bay in the intestine of the burrowing holothurian Paracaudina chilensis (Müller, 1850); P. rathbuni, in burrows of the echiurid Urechis unicinctus (von Drasche, 1881); and P. banzu, in tubes of the polychaete Chaetopterus cautus Marenzeller, 1879. The paper provides a key for identifying Pinnixa species and data on the size, behavior, symbionts, and parasites of P. rathbuni and P. banzu. Key words: Crustacea, Decapoda, Brachyura, Pinnotheridae, crabs, symbionts, Chaetopterus, Urechis, ecology, new findings and records, Sea of Japan. |
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