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Stenalpheops anacanthus, new genus, new species (Crustacea, Decapoda, Alpheidae) from the Seto Inland Sea and the Sea of Ariake, South Japan


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タイトル: Stenalpheops anacanthus, new genus, new species (Crustacea, Decapoda, Alpheidae) from the Seto Inland Sea and the Sea of Ariake, South Japan
著者: Miya, Yasuhiko
発行日: 1997年 9月
引用: 長崎大学教養部紀要. 自然科学篇. 1997, 38(1), p.145-161
抄録: Stenalpheops anacanthus, new genus, new species, is described and illustrated from specimens collected from the Seto Inland Sea and the Sea of Ariake, South Japan. Its affinities with the most closely related genus, Potamalpheops Powell, 1979, are discussed. The distinctions from Potamalpheops are: crenate lamella present along the full length of diaeresis of uropodal exopod; orbital teeth lacking; eyestalk with anteromedial protuberance; without ventral tooth on 1st antennular segment; sclerite at the base of antennule unarmed; anal tubercles present; two pairs of dorsal spines of telson situated laterally on proximal half; with 6 epipods and 4 setobranchs; and with rows of grooming setae on medial face of merus of 1st pereopod, which have not been reported in any other taxon. In addition, the symmetrical development of segmented appendix, without musculature, at the distal margin of uropodal exopods is found in two larger male specimens, the holotype (CL 6.6mm) and one paratype (CL 6.4mm). This is certainly unusual and unique, but can present an evidence to show "the distal segment of exopod" of uropods also "sometimes being multiarticulate" (McLaughlin, 1982: 202). CL: carapace length including rostrum.
URI: http://hdl.handle.net/10069/16665
ISSN: 02871319
資料タイプ: Departmental Bulletin Paper
原稿種類: publisher
出現コレクション:第38巻 第1号

引用URI : http://hdl.handle.net/10069/16665

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