Brachyuran fauna around Aioi Bay, Hyogo Prefecture, Japan

Abstract

We surveyed the brachyuran fauna around the Aioi bay in the Seto Inland Sea, Hyogo Prefecture, Japan. A total of 57 species of 18 families were identified from 10 sites on shingle and sand beaches, tidal flats, and oyster rafts. Color photographs, localities, collected dates and numbers of specimens were described for all identified species. The specimens were deposited at the Museum of Nature and Human Activities, Hyogo. Twenty-three of the 57 species were referred to the Threatened Species in the Red Data Book Hyogo. Nanopilumnus rouxi (Balss, 1935) (Pilumnidae), Clistocoeloma villosum (A. Milne-Edwards, 1869) (Sesarmidae), and Ilyograpsus nodulosus (Sakai, 1983) (Macrophthalmidae) are newly recorded from Hyogo prefecture.