The Taxonomy of Sesarma tangi Rathbun, 1931 and S. stormi De Man, 1895 (Crustacea: Decapoda: Brachyura: Grapsidae: Sesarminae), with Establishment of a New Genus for S. stormi

唐氏相手蟹和斯氏相手蟹之分類及－新屬之建立

黃峑麟(Peter K. L. Ng) ； 劉烘昌(Hung-Chang Liu)

《Zoological Studies》 38卷2期 (1999/04) Pp. 228-237

摘要

本文澄清了兩種相手蟹－唐氏相手蟹Sesarma tangi Rathbun, 1931和斯氏相手蟹S. stormi De Man, 1895的物種鑒定和屬間關係。這兩種所知甚少的蟹類，以往皆被暫置於膛臂蟹屬Chiromantes內。產自中國大陸的唐氏相手蟹目前僅有一模式標本，本文即據此唯一標本對該種詳細地重新描述。經比較研究，該種被保留於膛臂蟹屬中。斯氏相手蟹為臺灣島新記錄種，本文以探自臺灣南部的標本重新描述了該種。此種蟹類具備幾個奇特的特徵，表明它應被分出另立新屬。本文亦記述斯氏相手蟹的生態學特性。

關鍵字

唐氏相手蟹 ； 斯氏相手蟹 ； 新記錄 ； 新屬

並列摘要

The identities and generic affinities of 2 poorly known species of grapsid crabs, Sesarma tangi Rathbun, 1931 and S. stormi De Man, 1895, currently provisionally placed in Chiromantes, are clarified. The type, and only known specimen of S. tangi, from mainland China, is redescribed in detail, and it is retained in Chiromantes for the time being. Sesarma stormi is redescribed from specimens recently collected in southern Taiwan and is a new record for the island. This species has several peculiar features which indicate that it should be referred to its own genus. Notes on the ecology of S. stormi are also provided.

並列關鍵字

Sesarma tangi ； Sesarma stormi ； New record ； New genus