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Taxonomy and Distribution of the Genus Hymenopenaeus Smith,1882(Decapoda: Solenoceridae)in the Waters Adjacent to Taiwan
臺灣近海產膜對蝦屬（十足目：管鞭蝦科）的分類及分布研究
摘要
1994年至2000年之間，作者等使用「水試一號」試驗船所配置的各型網具，如：RMT多層分離採集網、A-35大型深海底拖網，IKMT中層採集網，以及FBT法式桁曳網等，在台灣沿、近海30 m至3,000 m深的水域總共捕獲120尾膜對蝦屬（十足目：管鞭蝦科）蝦類。其主要特徵爲頭胸甲具觸角刺、眼後刺、肝刺及鰓甲刺；第一額齒與額後齒之距離明顯長於其他各額齒間距；第一觸角上、下鞭近似圓柱形，以及尾柄側緣近末端處具有一對固定刺等等。進一步依據雌、雄交接器的構造及形態等特徵加以分類，結果鑑定係下列5種；等似膜對蝦Hymenopenaeus equalis(Bate,1881)、霍氏膜對蝦H.halliBruce,1966、海神膜對蝦H.neptunus(Bate,1888)、斜角膜對蝦H.obliquirostris(Bate,1881)、及直額膜對蝦H.propinquus(De Man,1907)。其中，斜角膜對蝦是台灣的新紀錄蝦種。作者等簡要描述並繪圖比較此等蝦種之主要部位的構造及其特徵，也討論其地理分布與垂直分布。彩色圖版則爲各蝦種鮮活時的體色。其中，海神膜對蝦所顯示者爲長尾類中十分罕見的暗褐色或鐵鏽色。
並列摘要
This is a taxonomic study on the deep-sea shrimps of the genus HymenopenaeusSmith,1882,based on the collection taken from 1994 to 2000 in the waters with depthsbetween 30 and 3,000 m around Taiwan,roughly between 19 and 27°N and 113 and 125°E.Sampling gears used were:RMT,IKMT,deep-sea bottom trawl,and French beam trawl.Hymenopenaeus,a genus of the Solenoceridae,is characterized by the presence of antennal,postorbital,hepatic and branchiostegal spines on the carapace;the subcylindricalantennular flagella;the postrostral teeth distantly separated from the rostral teeth;and thetelson with a single pair of fixed lateral spines.A total of five species are identified from120 specimens:H.equalis(Bate,1888);H.halli Bruce,1966;H.neptunus(Bate,1881);H.propinquus(De Man,1907),and H.obliquirostris(Bate,1881).Of which the last species isa new record for our study area.A key to these species is given.For each species,synonymy,diagnosis,and illustration(both line drawing and color photograph)are given.We also discuss the geographical and vertical distribution of these species.