Records of two mantis shrimps of Gonodactyloidea (Crustacea: Stomatopoda) from nearshore rocky reefs around Honshu Island, Japan

Abstract

Two species of rocky reef dwelling mantis shrimps of Gonodactyloidea are reported on the basis of materials from the nearshore environment of Honshu Island, Japan. Chorisquilla orientalis Hwang, Ahyong, and Kim, 2018 (Protosquillidae), originally described from Korean and Japanese waters, was recently discovered in additional localities of western to central Honshu, including Tottori, Shizuoka, and Kanagawa Prefectures. Taku spinosocarinatus (Fukuda, 1909) (Takuidae), originally described from Kanagawa Prefecture, was likewise discovered for the first time in Tottori Prefecture, on the western coast of the Sea of Japan; though it has been recorded from a more northern locality along the same coast. Previous Japanese records of these two species, which have been reported under different scientific and Japanese names, are herein revised, and proper Japanese names for them are proposed. Notes on the live coloration of the two species are also provided based on newly collected specimens.