Designation of a new genus Bathymenes for the deep-sea pontoniine shrimps of the 'Periclimenes alcocki species group'(Decapoda,Caridea,Palaemonidae),with a checklist of the species assigned to the genus  

作　　者：寇琦 李新正 Alexander J.BRUCE 

机构地区：[1]Institute of Oceanology,Chinese Academy of Sciences [2]Crustacea Section,Queensland Museum

出　　处：《Chinese Journal of Oceanology and Limnology》2016年第1期170-176,共7页中国海洋湖沼学报（英文版）

基　　金：Supported by the Institute of Oceanology,Chinese Academy of Sciences(IOCAS)(No.2012IO060105);the National Natural Science Foundation of China(No.41406147);the Strategic Priority Research Program of Chinese Academy of Sciences(No.XDB06010100)

摘　　要：A new genus of the deep-sea pontoniine shrimps,Bathymenes gen. nov.,is established for the 'Periclimenes alcocki species group' of the genus Periclimenes Costa,1844. The new genus is distinguished from other genera of the Pontoniinae by a combination of characters: the posteriormost dorsal rostral tooth remote from other teeth,situated in the epigastric position,cornea usually reduced,the propodus of second pereiopods covered with fine granules,the dactylus of the major second chela being generally flanged,the ambulatory pereiopods with the dactyli being biunguiculate and telson with more than two pairs of dorsolateral spines. The genus is mainly distributed in the tropical to warm-temperate Indo-West Pacific waters at depths greater than 200 m. Fifteen species previously recognized as belonging to the 'P.a lcocki species group' are now placed in Bathymenes gen. nov. A key for their identification and a checklist of congeneric species are provided.A new genus of the deep-sea pontoniine shrimps, Bathymenes gen. nov., is established for the ＇Periclimenes alcocki species group＇ of the genus Periclimenes Costa, 1844. The new genus is distinguished from other genera of the Pontoniinae by a combination of characters： the posteriormost dorsal rostral tooth remote from other teeth, situated in the epigastric position, cornea usually reduced, the propodus of second pereiopods covered with fine granules, the dactylus of the major second chela being generally flanged, the ambulatory pereiopods with the dactyli being biunguiculate and telson with more than two pairs of dorsolateral spines. The genus is mainly distributed in the tropical to warm-temperate Indo-West Pacific waters at depths greater than 200 m. Fifteen species previously recognized as belonging to the ＇P. alcocki species group＇ are now placed in Bathymenes gen. nov. A key for their identification and a checklist of congeneric species are provided.

关 键 词：PALAEMONIDAE Pontoniinae Periclimenes Bathymenes DEEP-SEA new genus 

分 类 号：Q959[生物学—动物学]