Paguristes jalur Morgan, 1992

Osawa, Masayuki & Fujita, Yoshihisa, 2019, Submarine cave hermit crabs (Crustacea: Decapoda: Anomura: Paguroidea) from three islands of the Ryukyu Islands, southwestern Japan, Zootaxa 4560 (3), pp. 463-482 : 465-467

Paguristes jalur Morgan, 1992

( Fig. 1B )

Paguristes jalur Morgan, 1992: 167 , figs. 1, 2 (type locality: Horburgh Island, Cocos (Keeling) Islands).— Osawa & Takeda 2004: 1099 , figs. 1–4.—McLaughlin 2007: 216, fig. 11.

Material examined. Ie Island, unnamed submarine cave: main tube, near bifurcation of tube, 9 September 2016, 1 male (sl 5.4 mm), RUMF-ZC-6012 ( IE 69 ). Okinawa Island , Hedo Dome cave: main tube, 12 August 2016, 1 male (sl 5.5 mm), RUMF-ZC-6015 ( HD 2016-69); same data as RUMF-ZC-6015, 3 males (sl 4.6–6.3 mm),

4 females (sl 2.6–5.2 mm), 4 ovigerous females (sl 3.7–5.5 mm), RUMF-ZC-6016 ( HD 2016-70 –80); main tube, 30 m from entrance, area of rocks, 12 August 2016, 3 males (sl 4.0–5.0 mm), 1 ovigerous female (sl 5.8 mm), RUMF- ZC-6017 ( HD 2016-89 –92); main tube, 21 May 2017, 3 males (sl 2.5–5.9 mm), 1 female (sl 5.1 mm), RUMF-ZC- 6018 (HD 2017-84); same data as RUMF-ZC-6018 , 1 females (sl 5.3 mm), RUMF-ZC-6019 (HD 2017-89). Shimoji Island, Akuma-no-Yakata cave: entrance , 4 February 2017 , 1 female (sl 6.3 mm), RUMF-ZC-6013 (SH53); same data as RUMF-ZC-6013 , 1 male (sl 5.7 mm), RUMF-ZC-6014 ( SH 54).

Distribution. Eastern Indian Ocean: Cocos (Keeling) Islands and Christmas Island; western Pacific: Guam and Ryukyu Islands in southwestern Japan; 2–37 m (McLaughlin 2007).

Habitat. Coral reefs; submarine caves and small crevices or horizontal holes on fore-reef slopes ( Osawa & Takeda 2004).

Remarks. Paguristes jalur is the sole species of the genus recorded from shallow coral reef environments including submarine caves in the Ryukyu Islands ( Osawa & Takeda 2004; Table 2). This species has been often found in small crevices or horizontal holes on fore-reef slopes of the islands, accompanied by Pylopaguropsis fimbriata with similarly red stripes on the ambulatory legs.

Figures

FIGURE 1. Entire animal, dorsal view. A, Aniculus retipes Lewinsohn, 1982, male (sl 11.9 mm), RUMF-ZC-6006 (IE141); B, Paguristes jalur Morgan, 1992, male (sl 5.4 mm), RUMF-ZC-6012 (IE69); C, Pseudopaguristes shidarai Asakura, 2004, male (sl 2.6 mm), RUMF-ZC-6020 (HD2017-140); D, Catapaguroides foresti McLaughlin, 2002, male (sl 2.0 mm), RUMFZC-6023 (IE173); E, Catapaguroides iejimensis Osawa & Takeda, 2004, male (sl 1.8 mm), RUMF-ZC-6026 (IE177); F, Catapaguroides longior Komai, Yamada & Shirakawa, 2010, male (sl 2.1 mm), RUMF-ZC-6027 (IE60); G, Catapaguroides longior Komai, Yamada & Shirakawa, 2010, female (sl 1.2 mm), RUMF-ZC-6029 (HD2017-107).