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Article
Published: 2016-09-19

A new species of the genus Rhinoecetes Just, 1983 (Crustacea: Amphipoda: Ischyroceridae) from Japan

Atmosphere and Ocean Research Institute, The University of Tokyo, 5-1-5 Kashiwa-shi, Chiba 277-8564 Japan.
Atmosphere and Ocean Research Institute, The University of Tokyo, 5-1-5 Kashiwa-shi, Chiba 277-8564 Japan.
Shimoda Marine Research Center, Faculty of Life and Environmental Sciences, University of Tsukuba, 5-10-1 Shimoda-shi, Shizuoka 415-0025 Japan
Crustacea Ischyroceridae Siphonoecetini Rhinoecetes new to Japan new species

Abstract

A new species of ischyrocerid amphipods, Rhinoecetes spinicaudus sp. nov., is described from Nabeta Bay, southeast coast of Izu Peninsula, central Japan. This new species can be distinguished from the other congeners by the presence of spinulation on the lateral margins of uropod I rami, row of small robust setae on uropod II ramus, and single robust seta on uropod III ramus. More detailed distinguishing characters from R. albomaculosus are also discussed. This is the first record of the genus Rhinoecetes from Japan. Key to all the species of Rhinoecetes is provided.

 

References

  1. Just, J. (1983) Siphonoecetinae subfam. n. (Crustacea, Amphipoda, Corophiidae) 1: classification. Steenstrupia, 9, 117–135.

    Just, J. (1988) Siphonoecetinae (Crustacea, Amphipoda, Corophiidae) 6: A survey of phylogeny, distribution, and biology. Crustaceana, 13 (Supplement), 193–208.

    Just, J. (2012a) Siphonoecetini Just, 1983 (Crustacea, Amphipoda, Ischyroceridae) 9: New species in Rhinoecetes Just, 1983, Cephaloecetes gen. nov. and Neoecetes gen. nov. from the south-eastern Australian shelf. Zootaxa, 3234, 1–42.

    Just, J. (2012b) Siphonoecetini Just, 1983 (Crustacea, Amphipoda, Ischyroceridae) 10: Belkginoecetes gen. nov., Tropicoecetes gen. nov. and Rhinoecetes Just, 1983 from north-eastern and northern Australian shallow water, with eight new species. Zootaxa, 3528, 1–28.

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