Alalykina, I. L.; Dnestrovskaya, N. Y. (2015). Nephtys sachalinensis sp. n. (Annelida: Nephtyidae): a new species from the upper sublittoral zone of northeastern Sakhalin Island, the Sea of Okhotsk. Russian Journal of Marine Biology / Biologiya Morya. 41(2): 127-135.

198131

10.1134/s1063074015020029 [view]

Alalykina, I. L.; Dnestrovskaya, N. Y.

2015

41(2): 127-135

Publication

World Polychaeta Database (WPolyDb). Journal published simultaneously in Russian and English editions

A new species of nephtyid polychaetes Nephtys sachalinensis sp. n. from the upper sublittoral zone (at a depth of 10–107 m) off Northeast Sakhalin, the Sea of Okhotsk, is described. Diagnostic characters of adults are: an everted pharynx with 20 bifid terminal and 2 median simple terminal papillae; single median dorsal and ventral pharyngeal subterminal papillae absent; proximal and median parts of the pharynx are covered with verrucae; branchiae begin from the fourth chaetiger; acicular lobes are distinctly bilobed from the anterior chaetigers almost to the end of the body; each acicular lobe (both in notoand neuropodia) has one rounded outgrowth on its interramal side; subulate notopodial cirri at the median and posterior chaetigers; neuropodial postacicular lobes are no more than two times longer than the acicular lobes. The new species is compared with its related species.

Sea of Japan

Polychaeta

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