Nephtys sachalinensis sp. nov. (Annelida: Nephtyidae) - a new species from the shelf of Sakhalin Island (the Sea of Okhotsk).

Alalykina, Inna L. and Dnestrovskaya, N. Y. (2015) Nephtys sachalinensis sp. nov. (Annelida: Nephtyidae) - a new species from the shelf of Sakhalin Island (the Sea of Okhotsk). Russian Journal of Marine Biology, 41 . pp. 127-135. DOI 10.1134/S1063074015020029.

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Abstract

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.

Document Type: Article
Keywords: Nephtys sachalinensis sp. nov.; Annelida: Nephtyidae; Sakhalin Island; Sea of Okhotsk
Refereed: Yes
Open Access Journal?: No
DOI etc.: 10.1134/S1063074015020029
ISSN: 1063-0740
Projects: Otto Schmidt Laboratory
Date Deposited: 21 Apr 2015 10:01
Last Modified: 07 Oct 2020 12:20
URI: http://oceanrep.geomar.de/id/eprint/28587

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