2024 Volume 50 Issue 4 Pages 155-169
Ten species of three families, i.e. two species of the family Acidopsidae [New Japanese name (NJn): Tsubu-kebukagani-ka], one species of the family Aphanodactylidae [Japanese name (Jn): Koyubi-pinno-ka], and seven species of the family Pilumnidae [Jn: Kebukagani-ka], are recorded as new to the Ogasawara Islands. Of them, Crinitocinus alcocki (Borradaile, 1902) [NJn: Tsubu-kebukagani] and Raoulia fortis Ng and Rahayu, 2014 [NJn: Raouru-gani] (Acidopsidae), and Pilumnus tahitensis De Man, 1890 [NJn: Tahichi-kebukagani] (Pilumnidae) are new to Japanese waters. The genus Neoactumnus Sakai, 1964, was considered to be synonymous with the genus Actumnus Dana, 1851, and its type species, N. convexus Sakai, 1964, known from Japan was synonymized with A. simplex Rathbun, 1911, together with N. unispina Garth and Kim, 1983, from the Philippines.
