A new species of the genus Lepechinella Stebbing, 1908 (Crustacea: Amphipoda: Lepechinellidae) from Japan

被引:0
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作者
Kodama, Masafumi [1 ]
Mukaida, Yukiko [2 ]
Hosoki, Takuya k. [3 ]
Jimi, Naoto [4 ,5 ]
机构
[1] Kagoshima Univ, Fac Fisheries, 4-50-20 Shimoarata, Kagoshima 8900056, Japan
[2] Kagoshima Univ, Grad Sch Agr Forestry & Fisheries, 4-50-20 Shimoarata, Kagoshima 8900056, Japan
[3] Hokkaido Univ, Field Sci Ctr Northern Biosphere, Tomakomai Expt Forest, Takaoka, Hokkaido 0530035, Japan
[4] Nagoya Univ, Grad Sch Sci, Sugashima Marine Biol Lab, Toba, Mie 5170004, Japan
[5] Univ Sains Malaysia 11800 USM, Ctr Marine & Coastal Studies, George Town, Malaysia
关键词
Taxonomy; Ryukyu Trench; Pacific Ocean; Japan; deep sea; new species; PHYLOGENY;
D O I
10.11646/zootaxa.5601.1.6
中图分类号
Q95 [动物学];
学科分类号
071002 ;
摘要
A new species of lepechinellid amphipod, Lepechinella macrospinosa sp. nov., is described from off Yakushima Island, Japan. The present new species closely resembles Lepechinella curvispinosa Pirlot, 1933 sharing strongly enlarged and backward-curved posterodorsal tooth on the pleonites 1-3. However, the present new species can be distinguished from L. curvispinosa by the longer pereopod 5 carpus, different shape of the posterodorsal tooth on pleonite 3 and urosomite 1, presence of the posteroventral tooth on the epimeral plates 1-3, and longer uropod 3 of which outer and inner rami are subequal in length. In addition, a partial DNA sequence of the mitochondrial cytochrome c oxidase subunit I (COI) of this species was determined for future studies.
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页码:127 / 142
页数:16
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