Jimi, Naoto; Eibye-Jacobsen, Danny; Salazar-Vallejo, Sergio I. (2018). Description of Elisesione imajimai sp. nov. from Japan (Annelida: Hesionidae) and a redescription of E. problematica (Wesenberg-Lund, 1950) and its confirmation within Hesionini. Zoological Studies. 57 (8): 1-9.

290087

10.6620/ZS.2018.57-08 [view]

urn:lsid:zoobank.org:pub:78E86A7D-C120-4580-8459-82D50DF965C2 [view]

Jimi, Naoto; Eibye-Jacobsen, Danny; Salazar-Vallejo, Sergio I.

2018

57 (8): 1-9

Publication

http://zoolstud.sinica.edu.tw/Journals/57/57-08.html

World Polychaeta Database (WPolyDb)

Available for editors   [request]

Elisesione imajimai sp. nov. is newly described based on specimens collected in Sagami Bay, Japan, at a depth of 150-250 m. This new species resembles E. problematica (Wesenberg-Lund, 1950) from Iceland, but differs because in E. imajimai sp. nov. the ventral cirri surpass the tips of the neurochaetal lobes, reaching to the medial part of the neurochaetal bundle; the palps are 1/2-4/5 as long as the antennae; the aciculae are pale brownish; and the dorsal integument shows 9-10 transverse wrinkles per segment, whereas in E. problematica the ventral cirri hardly reach the tips of the neurochaetal lobes; the palps are as long as the antennae; the aciculae are black; and there are 15 transverse wrinkles per segment. A morphological redescription of E. problematica based on its type material and a revised key to identify species in the genus are also provided. A phylogenetic analysis based upon four genes (COI, 16S, 18S, 28S) confirms its position within Hesionini.

Japan

Systematics, Taxonomy

Polychaeta

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