A new species of the genus Elasmopus from Miyako Island, Japan (Crustacea: Amphipoda: Maeridae)

被引：4

作者：

Nakamura, Yasuhiro ^{[1
]}

Nakano, Takafumi ^{[1
,2
]}

Ota, Yuzo ^{[3
]}

Tomikawa, Ko ^{[1
]}

机构：

[1] Hiroshima Univ, Grad Sch Educ, Dept Sci Educ, Higashihiroshima 7398524, Japan

[2] Kyoto Univ, Grad Sch Sci, Dept Zool, Sakyo Ku, Kitashirakawa Oiwakecho, Kyoto 6068502, Japan

[3] Sanin Kaigan Geopk Museum Earth & Sea, 1794-4 Makitani, Iwami 6810001, Japan

来源：

ZOOTAXA | 2019年 / 4544卷 / 03期

关键词：

Hadzioidea; Elasmopus rapax; cryptic species; aquaculture; COI;

D O I：

10.11646/zootaxa.4544.3.5

中图分类号：

Q95 [动物学];

学科分类号：

071002 ;

摘要：

A new species of the maerid amphipod, Elasmopus nkjaf, from Miyako Island, Ryukyu Islands, Japan, is named and described. Additionally, nucleotide sequences of nuclear 28S ribosomal RNA and histone H3 as well as mitochondrial cytochrome c oxidase subunit I and 16S ribosomal RNA from its holotype and paratype were determined. Elasmopus nkjaf sp. nov. belongs to the rapax-group, and distinguished from the other rapax-group species by long setae on ventral margin of epimeral plate 3, gland cone of peduncular article 2 of antenna 2 not reaching to end of peduncular article 3, propodus of gnathopod 1 facially setose, length of propodus of male gnathopod 2 shorter than 3 times as long as length of carpus, medial face of propodus of male gnathopod 2 shallowly hollowed, posterior margin of epimeral plate 3 without denticles. A key to the species of Elasmopus species occurring Japanese and adjacent waters is provided.

引用

页码：395 / 406

页数：12

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