Observations on Cumacea (Malacostraca: Peracarida) from Antarctic and Subantarctic Waters. III. The Genus Holostylis Stebbing, 1912 (Diastylidae), With a Supplemental Description of H. helleri (Zimmer, 1907) and the Description of H. spinicauda, a New Deep-Water Species

Document Type

Article

Publication Date

12-21-2005

Department

Marine Science

Abstract

The diastylid genus Holostylis Stebbing, 1912, which is characterized by the presence of an apparently uniarticulate uropodal endopod, is considered valid. A supplemental description is given for the type species, Holostylis helleri (Zimmer, 1907), and the description of H. spinicauda, a new deep-water form, is presented. The new species differs from H. helleri, the only other recognized member of the genus, by apparently lacking exopods on the female and by having its telson armed with a cluster of proximal dorsal spines. A third nominal species, Holostylis gayi (Nicolet, 1849) described from Chilean waters is considered a species incertae sedis.

Publication Title

Proceedings of the Biological Society of Washington

Volume

118

Issue

4

First Page

660

Last Page

673

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