Vol. 60, 2021
(update: 2021.08.18; 11.03)
The Hillstream Decapod
Crustaceans of Shenzhen, China, with Description of a New Species of
Freshwater Crab (Crustacea: Brachyura: Potamidae) of the Genus Megapleonum Huang, Shih &
Ahyong, 2018
Chao
Huang1,*
and Siying Mao2
doi:10.6620/ZS.2021.60-66
1Australian
Museum, 1 William St, Sydney NSW 2010, Australia. *Correspondence:
E-mail: chaohuang1777@yahoo.com (Huang)
2Unaffiliated, Guangdong, China. E-mail:
maosiying1994@gmail.com (Mao)
Received 29 July 2021 / Accepted 3
August 2021
Communicated by Benny K.K. Chan
Freshwater
decapod crustaceans are often ecologically important keystone species
in their habitats. The freshwater hillstream decapods of Shenzhen City,
Guangdong, China, were systematically surveyed for the first time from
June to September 2019. We identified a total of 19 decapod species
from 10 genera and six families. Of these, one Macrobrachium species and
one potamid species could not be assigned to any known species. The
latter clearly belongs to the monotypic genus Megapleonum Huang, Shih
& Ahyong, 2018, and resembles the type species M. ehuangzhang in
general external morphology. Striking differences in male gonopodal
morphology along with genetic evidence based on mitochondrial 16S rDNA
sequences strongly suggest that this species is distinct from the type
species and it is herein described as Megapleonum
shenzhen n. sp. Our
survey data sheds light on the biodiversity of hillstream decapods in
Shenzhen and highlights areas of conservation interest.
Key words: Aquatic fauna,
Decapoda, Freshwater crab, Freshwater shrimp, New species, Potamidae,
Systematics.
Citation: Huang C, Mao SY. 2021. The
hillstream decapod crustaceans of Shenzhen, China, with description of
a new species of freshwater crab (Crustacea: Brachyura: Potamidae) of
the genus Megapleonum Huang,
Shih & Ahyong, 2018. Zool Stud 60:66. doi:10.6620/ZS.2021.60-66.

Supplementary
materials: Fig. S1丨Table S1
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