Ocypode cordimana Latreille, 1818

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 : 465

Ocypode cordimana Latreille, 1818

( Fig. 3 )

Ocypode cordimana Latreille, 1818: 198 (Indes Orientalis).

Ocypoda cordimana – Tesch, 1918: 35 (Kawassang Island, South Sulawesi; Labuan Bajo, west coast of Flores; Kawa Bay, west coast of Seram).

Ocypode cordimanus – Sakai & Türkay, 1977: 178, figs. 12A–F, 34A–C ( Ambon, Moluccas); Sakai & Türkay, 2013: 696 (Bintan Island, Riau Islands; West Sumatra; Lampung, Sumatra; Bali; Ternate, North Moluccas; Ternate, North Moluccas; Aru Islands).

Material examined. 3 males (35.3 × 31.1 mm – 38.3 × 34.7 mm), 2 females (36.8 × 32.4 mm – 37.2 × 44.7 mm) ( MZB. Cru. 4914), Masyai Village, District of West Supiori , Supiori Municipality , Bepondi Island , Papua, 00º24′37.30″S 135º16′02.17″E, 22 Nov. 2018, DC Murniati, SNI Raharjo, D Nurdiansyah, A Kurnia ; 2 males (20.3 × 17.5 mm – 26.1 × 22.2 mm) ( MZB. Cru. 74), Djoemiang Island, near Madura , 21 September 1919, Ouwens ; 1 male (35.1 × 32.3 mm) ( MZB. Cru. 2201), Big Krakatau Island , Banten, 15 September 1979, H Wiriadinata ; 1 male (20.1 × 17 mm) ( MZB. Cru. 1375), Pelabuhan Ratu , West Java, 29 December 1969, F Sabar & Nurhasan ; 1 male (21.6 × 17.8 mm) ( MZB. Cru. 2442), Raja Ampat , Papua, 1 May 2008, D Wowor, RK Hadiaty, A Mun’im .

Remarks. The present specimens mophologically fit the description by Sakai & Türkay (2013). The carapace size ratio (cw/cl) is greater on smaller specimens. Ocypode cordimana is easily distinguished from congeners in having no stridulating ridge on the inner surface of the palm of the major cheliped ( Fig. 3D ) and in the G1 having a curved apical portion ( Fig. 3M–N ). The thumb-shaped projection on the G1 of O. cordimana is larger than that of O. ceratophthalmus .

Ocypode cordimana is widely distributed in the Indo-West Pacific region, i.e., Hawaii, Central and Southern Pacific, Australia, China, Japan, the Gulf of Thailand, Indonesia, India, Red Sea, Madagascar, Eastern and Southern Africa ( Sakai & Türkay, 2013). In Indonesia, it was recorded from the Riau Islands, Sumatra, the Lesser Sunda Islands, Moluccas, and Seram Island ( Tesch, 1918; Sakai & Türkay, 1977; Sakai & Türkay, 2013). The present record extends the distribution of this species further eastward within the Indonesian Archipelago.

The habitat of this species tends to be more terrestrial than those of other species of the genus Ocypode ( Tesch, 1918) . In the present study, specimens were collected from the high intertidal zone with sandy substrates together with O. ceratophthalmus , which is in concordance with the report of Huang et al. (1998).

Figures

Fig. 3. Ocypode cordimana (Latreille, 1818). MZB.Cru.4914, male, 38.3 × 34.7 mm; Papua: Bepondi Island. A, dorsal habitus, preserved colouration. B–L, right appendages. Chela: B, inner surface; C, outer surface; D, inner surface of palm indicating no stridulating ridge. P2–P5: E–H, anterior surface; I–L, posterior surface. G1: M, whole morphology; N, apical portion. Scale bars: A, 10 mm; B–C, E–L, 5 mm; D, M, N, 3 mm.