Revisiting Pagurus pilosipes (Stimpson, 1858) (Crustacea: Decapoda: Anomura: Paguridae)

Abstract

The study of newly collected samples from Okinawa, Ryukyu Islands, revealed that males of Pagurus pilosipes (Stimpson, 1858) have a prominent right sexual tube directed posterolaterally. Comparison of specimens previously identified as Pagurus pilosipes and newly collected specimens, combined with a molecular genetic analysis using partial sequences of the mitochondrial cytochrome c oxidase I (COI) gene, shows that Stimpson’s taxon occurs in the Japanese mainland, the Ogasawara Islands, the Okinawa Islands, and Korea. Stimpson’s taxon is transferred to the genus Boninpagurus Asakura and Tachikawa, 2004. Based on morphological and molecular evidence, Boninpagurus acanthocheles Asakura & Tachikawa, 2004, the type species of Boninpagurus, is synonymized with B. pilosipes n. comb. Affinity of Boninpagurus is briefly discussed.

A new species of the hermit crab genus Pagurus Fabricius, 1775 (Crustacea: Decapoda: Anomura: Paguridae) from shallow coastal waters in Japan, with a checklist of the East Asian species of the genus

“…Thanks to the revisionary studies and descriptions of new species published in the last two decades, taxonomy of species of the hermit crab genus Pagurus Fabricius, 1775 (Paguridae) occurring in waters around Japanese Archipelago and Taiwan Island has been substantially clarified (Sandberg & McLaughlin 1993;Komai 1994aKomai , 1994bKomai , 1996Komai , 1997Komai , 1998Komai , 1999aKomai , 1999bKomai , 2000aKomai , 2000bKomai , 2003aKomai , 2003bKomai , 2004McLaughlin & Konishi 1994;McLaughlin & Sandberg 1995;Komai & Imafuku 1996;McLaughlin & Forest 1997;McLaughlin & de Saint Laurent 1998;Komai & Yu 1999;Komai & Yakovlev 2000;McLaughlin & Lemaitre 2000;Komai & McLaughlin 2001;Komai & Osawa 2001;Komai & Mishima 2003;McLaughlin & Asakura 2004;Asakura 2006;Komai & Chan 2006;Komai & Takeda 2006;McLaughlin et al 2007;Komai et al 2011;Osawa 2012). At present, 44 species are known from the area.…”