Leucosia rubripalma Galil, 2003

Mizutani, Yoshiaki, Yanagisawa, Satoshi, Ichikawa, Mizuki, Nishio, Keisuke, Sakai, Hiroya, Nonokawa, Daishi, Makino, Yuichiro, Suzuki, Hitomi, Ichimiya, Hitoshi, Uchida, Yasuhiro, Watanabe, Junji, Kanashiro, Masaaki, Iwawaki, Tomoya, Kondo, Shun, Shibata, Rei, Inden, Yasuya & Murohara, Toyoaki, 2025, Some Subtidal Crabs (Crustacea, Decapoda, Brachyura) from Suruga Bay, Pacific Coast of Central Japan, Bulletin of the National Museum of Nature and Science. Series A, Zoology 51 (1), pp. 7-23 : 8-9

Leucosia rubripalma Galil, 2003

( Fig. 1 )

Leucosia perlata De Haan, 1841 : Minemizu, 2000, p. 197, 1 fig.

Leucosia anatum (Herbst, 1783) : Ng et al., 2001, p. 8, fig. 1h.

Leucosia rubripalma Galil, 2003 , pp. 183 (in key), 188, figs. 1D, 2G–H. — Galil & Ng, 2007, p. 85, fig. 2E; 2015, p. 476, fig. 5E. — Ng et al., 2008, p. 95 (in list). — Maenosono, 2021b, p. 34, fig. 9A–B. — Poore & Ahyong, 2023, fig. 48m.

Material examined. ɹOse-zaki, Suguga Bay,

9.5 m depth, 1 8 (cb 21.6 mm, cl 22.7 mm),

NSMT-Cr 32421, 2-IX-2023, coll. H. Takakura.

Remarks.ɹGalil (2003) strictly restricted the lobate corner ( Fig. 1A, C ), the granulated floor of the thoracic sinus ( Fig. 1B ), the thoracic sinus beaded with granules and anteriorly defined by rectangular margin of the pterygostomian region ( Fig. 1B ), and the dorsally carinate ambulatory carpi ( Fig. 1A ) clearly show that the present specimen belongs to L. rubripalma .

The dorsal and lateral views of a female from Okinawa-jima Island, Ryukyus, were given by Maenosono (2021b) who mentioned that Leucosia perlata De Haan, 1841 reported from Ose-zaki, Suruga Bay, by Minemizu (2000) should be really referred to L. rubripalma .

Distribution. Noumea and St. Vincent Bay, New Caledonia ( 12–30 m); Amboina, Indonesia; Papua New Guinea ( 3–17 m); Singapore; Bohol, Philippines ( 0–2 m); Okinawa-jima Island, Ryukyu Islands, and Suruga Bay, Japan ( 2–10 m).

Figures

Fig. 1. Leucosia rubripalma Galil, 8 (NSMT-Cr 32421; cb 21.6mm, cl 22.7mm). A, habitus, dorsal view; B, thoracic sinus of right side; C, lateral lobes of carapace posterior margin.