Type species. Leptochiton belknapi Dall, 1878, by original designation (Sirenko, Saito & Schwabe 2022).
Genus distribution. Pacific Ocean, from Asia to America and from Bering Sea to south Australia and New Zealand, Indian and Atlantic oceans. Recent-Pliocene, 20–4600 m, mainly deeper 200 m (Sirenko et al. 2022).