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New species of Stygiopontius (Copepoda: Siphonostomatoida: Dirivultidae) from a deep-sea hydrothermal volcano in the New Ireland Fore-Arc system (Papua New Guinea)

Published online by Cambridge University Press:  02 July 2013

Viatcheslav N. Ivanenko  and
Frank D. Ferrari
Viatcheslav N. Ivanenko*
Affiliation:
Department of Invertebrate Zoology, Biological Faculty, Lomonosov Moscow State University, Moscow 119899, Russia
Frank D. Ferrari
Affiliation:
1826 Deer Drive, McLean, VA 22101USA
*
Correspondence should be addressed to: V. N. Ivanenko, Department of Invertebrate Zoology, Biological Faculty, Lomonosov Moscow State University, Moscow 119899, Russia email: ivanenko@mail.bio.msu.ru
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Abstract

A male of the new species Stygiopontius senckenbergi belonging to the family Dirivultidae Humes & Dojiri, 1980 (Copepoda: Siphonostomatoida) and endemic to deep-sea hydrothermal vents, is described from a raised fault block structure south of Edison seamount of the New Ireland Fore-Arc system (Papua New Guinea). The copepods were collected in by box-corer during cruise SO-133 of the RV ‘Sonne’ at a depth of 1610–1625 m, 3°19′S 152°35′E. The new species belongs to a group of eight species that are separate from 21 congeners on the basis of setation of legs 1 and 4: the coxa of leg 1 has an inner seta (absent on the others) and the third exopodal segment of leg 4 has three outer spines (instead of two spines). The new species shares with S. pectinatus Humes, 1987 a pectinate maxilliped but differs from it in lacking two pectinate, terminal claw-like setae on the endopod of the antenna.

Keywords

StygiopontiusDirivultidaeSiphonostomatoidaCopepodaEdison seamountNew Ireland Fore-ArcWest Pacificdeep-sea
Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 93 , Issue 7 , November 2013 , pp. 1805 - 1812
Copyright
Copyright © Marine Biological Association of the United Kingdom 2013 

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References

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