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Issue: Vol. 4320 No. 1: 14 Sept. 2017
Type: Article
Published: 2017-09-14
DOI: 10.11646/zootaxa.4320.1.2
Page range: 25–40
Abstract views: 160
PDF downloaded: 5

Description of a new species of deepwater catshark Apristurus yangi n.sp (Carcharhiniformes: Pentanchidae) 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
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 taxonomy western South Pacific Apristurus longicephalus group molecular analysis

Abstract

Apristurus yangi, a new species of deepwater catshark, is described from Papua New Guinea based on two specimens collected during recent deepwater surveys. The new species belongs to the longicephalus-group which is characterised by its very long snout compared to members of the brunneus-group and spongiceps-groups. Apristurus yangi differs from its closest congeners in a combination of the following characters: 8 intestinal spiral valves; mouth width 7.9–8.6% TL; 32–33 monospondylous centra; 38 precaudal-diplospondylous vertebrae; small in size (female holotype mature at 437 mm TL); egg case small (~5.9 cm long) and with faint longitudinal striations.

 

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