Two new species of eyeless amphipods from a coastal area in Japan (Crustacea: Amphipoda: Hadziidae, Melitidae), with reinstatement of the genus <i>Paraniphargus</i> Tattersall, 1925

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ABSTRACTTwo new species of eyeless amphipods are described from coastal Japan. Dulzura projecta sp. nov. (Hadziidae) was collected under large stones and in coarse sand from Osaka to Mie Prefectures. Dulzura projecta can be distinguished from the other Dulzura species by the distinct projection on article 1 of the male pleopod 3 inner ramus and the very long carpus of male gnathopod 1. Paraniphargus shiosai sp. nov. (Melitidae) was collected in coarse sand from Mie Prefecture, and can be differentiated from the other two species in the genus by the dorsal teeth on the pleonites, the smaller coxa 4 with shallow excavation and the shorter antenna 1 flagellum. Paraniphargus is reinstated as a distinct genus, following observation of the gnathopods, which revealed sexual monomorphism between males and females.

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