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Issue: Vol. 4244 No. 3: 21 Mar. 2017
Type: Article
Published: 2017-03-20
DOI: 10.11646/zootaxa.4244.3.3
Page range: 339–354
Abstract views: 136
PDF downloaded: 3

Etmopterus samadiae n. sp., a new lanternshark (Squaliformes: Etmopteridae) from Papua New Guinea

CSIRO Oceans & Atmosphere, GPO Box 1538, Hobart, TAS, 7001, AUSTRALIA CSIRO National Research Collections Australia-Australian National Fish Collection, GPO Box 1538, Hobart, TAS, 7001, AUSTRALIA Pacific Shark Research Center, Moss Landing Marine Laboratories, Moss Landing, CA 95039, USA.
Pacific Shark Research Center, Moss Landing Marine Laboratories, Moss Landing, CA 95039, USA. Research Associate, South African Institute for Aquatic Biodiversity, Private Bag 1015, Grahamstown, 6140, South Africa. Research Associate, Department of Ichthyology, California Academy of Sciences, 55 Music Concourse Drive, San Francisco, CA. 94118, USA
School of Natural and Physical Sciences, University of Papua New Guinea, P.O. Box 320, University P.O., National Capital District, PAPUA NEW GUINEA
Hollings Marine Laboratory, College of Charleston, Charleston, SC 29412, USA
Pisces Chondrichthyes Etmopterus lucifer clade new species Papua New Guinea molecular analysis

Abstract

A new species of lanternshark, Etmopterus samadiae (Squaliformes: Etmopteridae), is described from off northern Papua New Guinea, in the western Central Pacific Ocean. The new species resembles other members of the “Etmopterus lucifer” clade in having linear rows of dermal denticles and most closely resembles E. brachyurus from the western North Pacific. The new species occurs along insular slopes between 340 and 785 m depth. The new species can be distinguished from other members of the E. lucifer clade by a combination of characteristics, including length of anterior flank branch markings being slightly shorter than its posterior branch, a longer caudal base marking, and irregular and variable number of black, horizontal, dash-like marks on sides of body. Molecular analysis based on the NADH2 marker further supports the distinction of E. samadiae from other members of the E. lucifer clade.

 

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