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Issue: Vol. 5476 No. 1: 4 Jul. 2024
Type: Article
Published: 2024-07-04
DOI: 10.11646/zootaxa.5476.1.15
Page range: 152-165
Abstract views: 175
PDF downloaded: 2

A new species of the genus Ptychognathus Stimpson, 1858 (Crustacea: Brachyura: Varunidae) from Vanuatu

National Chung Hsing University; Department of Life Science. 250 Kuo Kuang Road; Taichung 402; Taiwan
National Chung Hsing University; Department of Life Science. 250 Kuo Kuang Road; Taichung 402; Taiwan
Crustacea Ptychognathus P. amikee new species morphology mitochondrial cytochrome c oxidase subunit I (COI) southwestern Pacific

Abstract

Ptychognathus Stimpson, 1858 is a speciose genus in the family Varunidae, widely distributed in the Indo-West Pacific. Although species of Ptychognathus are common in estuaries with low salinity, some species are difficult to be identified correctly because of their small body size and similar morphology. This study describes one new species, Ptychognathus amikee sp. nov., from Vanuatu based on the morphological differences and the genetic data from mitochondrial cytochrome c oxidase subunit 1 (COI). This new species can be distinguished from the other congeners by the characters of the carapace, male chelipeds, and ambulatory legs

 

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