New Species and New Japanese Records of the Gammaridea (Crustacea : Amphipoda) from Matsukawa-ura Inlet, Fukushima Prefecture, Japan

Abstract

Nineteen species of gammaridean Amphipoda were collected by plankton net from Matsukawa-ura Inlet, Fukushima Prefecture, Japan, during an ecological survey of fish larvae. Six new species and three new records for Japan were found. Pontogeneia stocki Hirayama, 1990 has been reported as a new species previously. The other eight species are described and figured herein: Atylus matsukawaensis sp. nov., Synchelidium longisegmentum sp. nov., Dulichia biarticulata sp. nov., Gitanopsis oozekii sp. nov., Stenothoe dentirama sp. nov., Lepidepecreum gurjanovae Hurley, 1963, Eogammarus possjeticus Tzvetkova, 1967, and Tiron spiniferus (Stimpson, 1853).