Sunday, February 28, 2021

[Crustacea • 2020] Lacunipotamon yuanshi & L. cymatile • The Freshwater Crab Genus Lacunipotamon (Decapoda, Brachyura, Potamidae), with Descriptions of Two New Species from southwestern China


 Lacunipotamon yuanshi L. cymatile
Huang, Shih & Ahyong, 2020


Abstract
The poorly known genus Lacunipotamon Dai, Song, He, Cao, Xu & Zhong, 1975, is studied and reviewed. Two new species, Lacunipotamon yuanshi sp. nov. and Lacunipotamon cymatile sp. nov. from Yunnan Province and Guangxi Zhuang Autonomous Region, respectively, are described based on morphology and mitochondrial cytochrome c oxidase subunit I (COI) sequences. Both superficially resemble Lacunipotamon albusorbitum Dai, Song, He, Cao, Xu & Zhong, 1975, the type and previously only known species in the genus, but can be distinguished by the combination of live colour, size, maxilliped III, male thoracic sternum, male pleon, male gonopod, and female gonopore characters. Phylogenetic analysis of the molecular data corroborates the novelty of the two species.

Keywords: Lacunipotamon; COI; new species; Potamidae; systematics; China; freshwater crab



 Chao Huang, Hsi-Te Shih and Shane T. Ahyong. 2020.The Freshwater Crab Genus Lacunipotamon Dai, Song, He, Cao, Xu & Zhong, 1975 (Decapoda, Brachyura, Potamidae), with Descriptions of Two New Species from southwestern China. Crustaceana.  93(11-12); 1361–1379. DOI: 10.1163/15685403-bja10067
院士潭蟹(Lacunipotamon yuanshi
与蓝潭蟹(Lacunipotamon cymatile