Paraleptuca crassipes ( White, 1847 )

Murniati, Dewi Citra, Asakura, Akira, Nugroho, Dharma Arif, Hernawan, Udhi Eko & Dharmawan, Wayan Eka, 2022, On a collection of thoracotreme crabs (Crustacea: Brachyura: Ocypodidae, Macrophthalmidae, Dotillidae) from two offshore islands of Papua, eastern Indonesia, with descriptions of two new species, Raffles Bulletin of Zoology 70, pp. 461-491 : 469

Paraleptuca crassipes ( White, 1847)

( Fig. 5 )

Uca gaimardi – Tesch, 1918: 39, 40 ( Flores) Uca (Amphiuca) chlorophthalmus crassipes – Crane, 1975: 101 (Buru Island, Moluccas; Aru Island, Moluccas) Uca crassipes – Shih et al., 2012: 85, fig. 1 (Kuta, Lombok Island). Uca (Paraleptuca) crassipes – Murniati & Pratiwi, 2015: 62. (Bali Island; Moluccas; Papua) Paraleptuca crassipes – Shih et al., 2016: 156, fig. 10d (Indo West Pacific).

Material examined. 5 males (12.4 × 8.0 mm – 14.0 × 9.1 mm), 10 females (11.7 × 7.9 mm – 13.7 × 9.1 mm) ( MZB. Cru. 4918), Liki Village, Sarmi District , Sarmi Municipality , Liki Island , Papua Province, 01º37′25.29″S, 138º44′26.54″E, 26 November 2018, DC Murniati ; 2 males ( MZB. Cru. 2678) (15.6 × 10.1 – 18.2 × 11.4 mm), Gilimanuk Bay, Malaya District , Jembrana Municipality , Bali Province, 08º10′227″S, 114º26′680″E, 14 July 2009, DC Murniati ; 5 males (11.8 × 6.7 mm – 15.5 × 9.2 mm) ( MZB. Cru. 4174), Gili Lawang Island, near Lombok Island , West Nusa Tenggara Province, 08º18′8.5″S, 116º42′10.1″E, 25 April 2008, DC Murniati & Satriawan ; 3 males (14.8 × 8.5 mm – 17.1 × 10.6 mm) ( MZB. Cru. 2464), Sagawin Strait, Raja Ampat , West Papua Province, 00º50′17.7″S, 130º53′16.0″E, 26 April 2008, D Wowor, RK Hadiaty, A Munim .

Remarks. Paraleptuca crassipes is easily recognised in the field by the red colouration on the dorsal surface of the carapace, chelipeds, and legs. The morphological characteristics of our samples fit the descriptions by Crane (1975), Shih et al. (2012) and Shih et al. (2016). The G1 of our samples from Liki Island ( Fig. 5H–I ) resembles that of Crane’s (1975: fig. 13G) specimens from Hong Kong, in which the apical portion is distinctly long and the flange is distinctly short.

Shih et al. (2012) reported that P. crassipes is widely distributed in the western and central Pacific Ocean and the eastern margin of the Pacific region. The present record extends the distribution of this species further eastward within the Indonesian Archipelago. This species inhabits muddy substrates on the intertidal area.

Figures

Fig. 5. Paraleptuca crassipes (White, 1847). MZB.Cru.4918, male 13.7 × 9.0 mm; Papua: Liki Island. A, in situ with live colouration. MZB.Cru.4918, male, 14.0 × 9.2 mm; Papua: Liki Island. B, dorsal habitus, preserved colouration. C, outer surface of major chela. P2–P5: D–G. Right G1: H, dorsal and ventral view; I, apical portion. Scale bars: B–G, 5 mm; H, 3 mm; I, 1 mm.