Platymaia fimbriata Rathbun, 1916

Islam, Atikul, Banerjee, Abhishek, Wati, Sisca Meida, Banerjee, Sumita, Shrivastava, Deepti & Srivastava, Kumar Chandan, 2022, Crabs (Crustacea, Decapoda) from the Sea off East and Southeast Asia Collected by the RV Hakuhō Maru (KH- 72 - 1 Cruise) 2. Timor Sea, Bulletin of the National Museum of Nature and Science. Series A, Zoology 48 (1), pp. 5-24 : 16

Platymaia fimbriata Rathbun, 1916

( Fig. 5E )

Material examined. RV Hakuhō Maru KH-72-1 cruise, sta. 26 (Timor Sea; 09°27.0′S, 127°58.6′E –09°285.0′S, 127°56.1′E, 610–690 m depth), 3 m beam trawl; June 19, 1972; 1♂ (NSMT-Cr 29262: CL 9.3 mm excluding pseudorostral spine, CB 8.7 mm).

RV Hakuhō Maru KH-72-1 cruise, sta. 33 (Off Sahul Shelf, 12°42.2′S, 123°07.6′E – 12°42.0′S, 123°08.5′E, 535–547 m depth), 3 m beam trawl; June 26, 1972; 1♂ (NSMT-Cr 29263: CL 14.0 mm excluding pseudorostral spines, CB 12.6 mm).

Remarks. Of ten Platymaia species enumerated by Ng et al. (2008), P. fimbriata is very unique in having numerous spines on the carapace dorsal surface. Both specimens examined are small, but agree well with the original description ( Rathbun, 1916) and the illustrations and photographs by Sakai (1965: pl. 5 fig. 5; 1976: pl. 58), Griffin (1976: fig. 9), and Guinot and Richer de Forges (1985: figs. 7, 8A–B, pl. 1 fig. F–G).

Distribution. Eastern Australia, Indonesia, the Philippines and Japan; 250–1095 m depth. Davie (2002) listed this species in the Zoological Catalogue of Australia based on the records by Griffin and Tranter (1986a) and Davie and Short (1989).

Figures

Fig. 5. A: Pleistacantha griffini Ahyong and Lee, male (NSMT-Cr 29258: CB 6.7mm×CL 10.2mm excluding pseudorostral spines) from sta. 28 (Timor Sea, 295–296m depth). B: Cyrtomaia suhmi Miers, male infected by epicaridean parasites in both branchial chambers (NSMT-Cr 29259: CB 31.6mm excluding branchial spines×CL 26.2mm excluding pseudorostral spines) from sta. 26 (Timor Sea, 610–690m depth). C–D: Dorhynchus rostratus (Sakai), female (NSMT-Cr 29261: CB 15.2mm×CL 15.0mm excluding pseudorostral spines) from sta. 26 (Timor Sea, 610–690m depth). E: Platymaia fimbriata Rathbun, male (NSMT-Cr 29263: CB 14.0mm×CL 12.6mm excluding pseudorostral spines) from sta. 26 (Timor Sea, 610–690m depth). F: Platymaia wyvillethomsoni Miers, ovigerous female (NSMT-Cr 29264: CB 39.5mm excluding branchial spines×CL 36.7mm excluding pseudorostral spines) from sta. 28 (Timor Sea, 295–296m depth).