Pylocheles Mortensenii Boas, 1926: 40

Komai, Tomoyuki & Chan, Tin-Yam, 2016, “ Symmetrical ” hermit crabs of the family Pylochelidae (Crustacea: Decapoda: Anomura) collected by the “ BIOPAPUA ” and “ PAPUA NIUGINI ” expeditions in the Papua New Guinea, with descriptions of two new species, Zootaxa 4088 (3), pp. 301-328 : 307-308

Pylocheles mortensenii Boas, 1926

Pylocheles Mortensenii Boas, 1926: 40 , figs. 1, 5, 6, 10A, 11B, 13, 14, 18, 25A [type locality: Kei Islands, Indonesia, 290 m].

Mixtopagurus rigidus Yokoya, 1933: 71 , fig. 31 [type locality: syntypes came from five stations in Japanese waters: S of Omaezaki, Shizuoka Prefecture, 196 m; W of Tanegashima Island, 203 m; Bungo Strait, 190 m; E of Tanegashima Island, 219 m; near Koshiki Islands, 300 m].

Pylocheles rigidus .—Miyake 1978: 11, fig. 4.—Baba 1986: 185, fig. 132, 295.

Pylocheles (Pylocheles) mortensenii .—Forest 1987a: 51, figs. 2a, 3a, 5a, b, 7a, 8a–i, 9a–d, 41a, pl. 2C; 1987b: 311, figs. 1a, 3.—Forest & McLaughlin 2000: 33, fig. 5.—McLaughlin et al. 2007: 20, unnumbered figs.—Lemaitre et al. 2009: 5.— McLaughlin & Lemaitre 2009: 179.

Pylocheles mortensenii .—Saito & Konishi 2002: 623, figs. 1–3.

Material examined. BIOPAPUA, stn CP 3693, SE of Manus Island, 02°10’S, 147°17’E, 300 m, 1 male (sl 4.0 mm), MNHN-IU-2011-2634; same data, 1 ovigerous female (damaged, not measured), MNHN-IU-2011-1634; stn DW 3732, off Lancasay Island, 08°16’S, 150°29’E, 340–358 m, 9 October 2010, 1 male (sl 4.1 mm), 1 ovigerous female (sl 4.6 mm), MNHN-IU-2011-1039; DW 3734, off Lancasay Island, 08°16’S, 150°30’E, 389 m, 9 October 2010, 1 male (sl 3.5 mm), MNHN-IU-2011-930.

PAPUA NIUGINI, stn CP 4016, E of Umboi Island, Solomon Sea, 05°40’S, 148°14’E, 280–285 m, 12 December 2012, 1 female (sl 4.8 mm), MNHN-IU-2013-14442.

Description. See Forest (1987a: 51) and McLaughlin & Lemaitre (2009: 179).

Size. Largest male sl 4.1 mm, largest female sl 4.8 mm, ovigerous female sl 4.6 mm.

Distribution. Japan, Taiwan, Philippines, Indonesia, Solomon Islands, Tonga, Fiji, Vanuatu, New Caledonia, Australia, New Zealand; 100–700 m (McLaughlin & Lemaitre 2009).

Habitat. Cavities in pumice rock (Miyake 1982; Forest 1987; McLaughlin & Lemaitre 2009; this study)