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  • 期刊

Quadrella Maculosa Alcock, 1898, a Genus and Species of Shallow-water Xanthid Crab (Brachyura: Xanthoidea: Trapeziidae) New to Taiwan

臺灣新記錄之淺海螃蟹:斑點四齒蟹(短尾亞目:扇蟹首科:梯形蟹科)

摘要


斑點四齒蟹Quadrella maculosa Alcock, 1898是臺灣新記錄的扇蟹,也是四齒蟹屬的首次發現,棲息在位於水深53公尺的硬質海底的黑珊瑚Antipathes sp.上面,而該黑珊瑚標本是利用遙控潛航器在南臺灣南灣地區所採集的。斑點四齒蟹的特徵是前額分為4個三角形齒;兩螫粗大且極長,腕節有棘,長節前緣棘狀或遠端棘狀;第五胸足指節和前節覆蓋有長剛毛,指節腹緣有14-16齒,且遠端6-8齒的內側有額外的短剛毛;活時全體為深橙紅色,眼區之間有淡色橫帶,以及後鰓區各有一個新月形淡色斑。

關鍵字

新記錄種 甲殼類 分類 共生 黑珊瑚類

並列摘要


This is the 1st record of the genus and species of the xanthid crab, Quadrella maculosa Alcock, 1898, to be reported for the carcinological fauna of Taiwan. This species was symbiotically associated with the black coral Antipathes sp. (Order Antipatharia), and was collected from the sea bottom at a depth of 53 m depth offshore from Nanwan, Pingtung County in southern Taiwan. It is distinguished from other congeneric species by the armature of the carpus and the merus of the chelipeds, and the dactyls of the pereiopods.

並列關鍵字

New record Crustacean Taxonomy Symbiosis Antipatharian Coral

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