APHANODACTYLIDAE Ahyong and Ng, 2009

Feng, Yaqi, Zhao, Wenjiang, Feng, Yawen & Dai, Wenli, 2023, Updated Checklist of the Crabs (Crustacea: Decapoda: Brachyura) from the Sea around the Ogasawara Islands, Japan, Bulletin of the National Museum of Nature and Science. Series A, Zoology 49 (4), pp. 161-178 : 173

Family APHANODACTYLIDAE Ahyong and Ng, 2009 — 1 sp.

Takedactylus compressus Naruse and Yoshida, 2018 [Jn: Petankokoyubi-pinno] — Naruse & Yoshida (2018: Nakodo-jima I., ca 15 m; Muko-jima I., ca 10m)

Family PINNOTHERIDAE De Haan, 1833 — 2 spp.

Indopinnixa kumejima Naruse and Maenosono, 2012 [Jn: Kumejimamamegani] — OIBO (2017a, table 1: Iguma Bay, Haha-jima I.)

Pinnotheres boninensis Stimpson, 1858 [Jn: Kuro-pinno] — Stimpson (1858, 1907: Ogasawara Is.); Suzuki (1972: Miyano-hama, Chichi-jima I.); Sakai (1976: Ogasawara Is.); OIBO (2017a, in table 1: Seihyo Beach, Chichi-jima I.)

Family TETRIASIDAE Tsang and Naruse, 2023 — 1 sp.

Tetrias fisheri (A. Milne-Edwards, 1867) [Jn: Minami-yokonagapinno] —Takeda (1977: Takinoura Bay, Ani-jima, 45 m; Futami Bay, Chichi-jima I., 42m); Takeda & Komatsu (2018: W Ani-jima I., 41–62m)

* 1) A new volcanic island, Nishino-shima-shinto, has been merged with the old island through the repeated eruptions, magnifying the size still now.

* 2) The Iwo Islands, with North and South Islands in the south of the Ogasawara Islands, were often romanized in different form as Iwo-jima, Iwo-to or Ioto.