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Issue: Vol. 3878 No. 2: 23 Oct. 2014
Type: Article
Published: 2014-10-23
DOI: 10.11646/zootaxa.3878.2.1
Page range: 101–145
Abstract views: 76
PDF downloaded: 3

Redescriptions of six species of Ilyodromus Sars, 1894 (Crustacea, Ostracoda, Cyprididae) from New Zealand and Eastern Australia

Centre for Ecosystem Management, Edith Cowan University, 270 Joondalup Dv, Joondalup, WA 6027, Australia.
Bennelongia Environmental Consultants, 5 Bishop Street, Jolimont WA 6014, Australia
Centre for Ecosystem Management, Edith Cowan University, 270 Joondalup Dv, Joondalup, WA 6027, Australia.
Royal Belgian Institute of Natural Sciences, Freshwater Biology, Vautierstraat 29, B-1000 Brussels, Belgium. University of Hasselt, Research Group Zoology, Agoralaan Building D, B-3590 Diepenbeek, Belgium.
Royal Belgian Institute of Natural Sciences, Freshwater Biology, Vautierstraat 29, B-1000 Brussels, Belgium. University of Ghent, Department of Biology, K.L. Ledeganckstraat 35, B-9000 Gent, Belgium.
taxonomy systematics diversity morphology SEM

Abstract

In this paper, we redescribe six species of the genus Ilyodromus Sars, 1894: I, stanleyanus (King, 1855), I. varrovillius (King, 1855), I. smaragdinus Sars, 1894, I. obtusus Sars, 1894, I. substriatus Sars, 1894 and I. viridulus (Brady, 1886) using materials stored in the Oslo museum (Norway) and (re-) described by G.O. Sars.  For each species examined, we have identified a number of additional diagnostic characters to those used by Sars and earlier authors. In particular, the length of setae, claws and segments of the antennule, antenna, sixth limb, and caudal ramus appear to be important for species delineation in the genus, as does the internal structure of the valves.