Pagurixus nomurai Komai & Asakura, 1995

Komai, Tomoyuki, Rahayu, Dwi Listyo & Fujita, Yoshihisa, 2021, Hermit crabs of the family Paguridae (Crustacea: Decapoda: Anomura) from Christmas and Cocos (Keeling) Islands, Indian Ocean Territory of Australia, with descriptions of three new species and reappraisal of the genus Kumepagurus Komai & Osawa, 2012, Raffles Bulletin of Zoology 69, pp. 378-402 : 398

Pagurixus nomurai Komai & Asakura, 1995

Pagurixus nomurai Komai & Asakura, 1995: 341 , figs. 1–3; Komai & Osawa, 2006: 32 , figs. 12–14, 44C, 47; Osawa & Chan, 2009: 329, fig. 7E; Komai, 2010: 1314 ; Komai & Rahayu, 2013: 135 ; Poupin et al., 2013: 45, fig. 23D, E; Arima, 2014: 179, unnumbered figs.; Tan et al., 2014a: 411, fig. 12; Osawa & Fujita, 2016: 17, 20, fig. 6B; 2019: 472, figs. 2C, D, 5A, B.

Material examined. CHRISTMAS ISLAND. QM W29570, 1 male (sl 2.1 mm), CI-D10-2011, West White Cave , off West White Beach, 10°27.733′S, 105°35.054′E, 1–12.3 m, 27 March 2011 ; ZRC 2021.0639 , 5 males (sl 1.4–3.6 mm), 2 females (sl 1.7, 2.0 mm), 1 ovigerous female (sl 1.9 mm), CI-D16-2011, Flying Fish Cove , 10°25.815′S, 105°40.180′E, 29 March 2011 ; QM W29571, 1 male (sl 2.4 mm), CI- D18-2011, Rhoda Wall , off Rhoda Beach, 10°27.729′S, 105°37.283′E, 5–16 m, 30 March 2011 .

Distribution. Widely distributed in the Indo-West Pacific: Mayotte, Réunion, the Philippines, Taiwan, Japan (Ryukyu Islands), Guam, northwestern Australia, Samoa, Cook Islands, and French Polynesia; subtidal to 60 m ( Komai & Osawa, 2006; Komai, 2010; Komai & Rahayu, 2013; Tan et al., 2014a).

Remarks. Osawa & Fujita (2019) remarked that individuals inhabiting cave environments are different from those inhabiting coral reef environments in the overall colouration (reddish brown versus generally brown, olive, or bluish gray) and the more proportionally slender carpus of the left cheliped. Molecular comparison between the two forms is now in progress ( Osawa & Fujita, 2019). Our specimens are referred to as P. nomurai for the time being.