The freshwater crabs of Macau, with the description of a new species of Nanhaipotamon Bott, 1968 and the redescription of Nanhaipotamon wupingense Cheng, Yang, Zhong & Li, 2003 (Crustacea, Decapoda, Potamidae)

By

Huang, Chao
Wong, Kai Chin
Ahyong, Shane T.

Type

Article

Date of Publication

2018

Original Publication

ZooKeys

Volume

810

Pages

91-111

Subjects

freshwater crabs , Gecarcinucidae , Macau , new species , Potamidae , systematics

Contributed by

Pensoft Publishers

Language

English

Published by

Sofia, Bulgaria Pensoft Publishers

Identifiers

DOI: https://doi.org/10.3897/zookeys.810.30726

 

Abstract

Four species of freshwater crabs from three genera and two families (CantopotamonhengqinenseHuang, Ahyong & Shih, 2017,NanhaipotamonguangdongenseDai, 1997,Nanhaipotamonmacausp. n., andSomanniathelphusazanklonNg & Dudgeon, 1992) are documented from Macau for the first time. One new species,Nanhaipotamonmacausp. n., is described. The large flap on the male first gonopod terminal segment sets it apart from all other known congeners exceptN.wupingenseCheng, Yang, Zhong & Li, 2003, from Fujian. Characters of the carapace, male first gonopod and size, however, clearly differentiate these two species. Preliminary genetic studies also suggest that the two are not closely related. A neotype is designated forN.wupingense. The taxonomic status ofNanhaipotamonguangdongenseis also discussed. Notes on the general biology and conservation status of these crabs are also included.