A New Genus and Species of Kamakidae (Crustacea: Amphipoda) from Isahaya Bay, Western Japan

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  • Ariyama Hiroyuki
    Marine Fisheries Research Center, Research Institute of Environment, Agriculture and Fisheries, Osaka Prefectural Government

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Abstract

A monotypic new genus, Heterokamaka (Crustacea: Amphipoda: Kamakidae), is erected for its type species H. isahayae sp. nov. from Isahaya Bay, western Japan. Heterokamaka closely resembles Kamaka Dershavin, 1923 in having a dilated coxa 1, coalesced urosomites 1 and 2, and a uniramous uropod 3; however, it can be distinguished readily by the acute-tipped, short ocular lobes. Because H. isahayae occurs only in Isahaya Bay, which has become eutrophic, this new species is probably facing a high risk of extinction.

Journal

  • Species Diversity

    Species Diversity 13 (2-3), 175-185, 2008

    The Japanese Society of Systematic Zoology

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