Arcania cornuta (MacGilchrist, 1905)
(Fig. 11)
Ixoides cornutus MacGilchrist, 1905: 255 .—Alcock & MacGilchrist 1905: pl. 73, fig. 2.—Devi et al. 1988b: 561, figs. 1, 2.— Kumar et al. 2007: 285.
Kerala material examined. Neendakara, 08˚56'N 76˚32'E, 12 Jan. 2013, 10 ♂ (CW 18.7–46.9 mm), 6 ♀ (CW 33– 45.0 mm) (DABFUK).
Colour. Carapace in the freshly collected specimen is salmon-pink, more intense medially, tips of lateral spines and papillate posterior spines white (Fig. 11).
Distribution. Originally described from the Persian Gulf (MacGilchrist 1905), A. cornuta is a widely distributed species with records from Mozambique Channel, Madagascar, Seychelles, Japan, China, Taiwan, Philippines, Vietnam, Papua New Guinea, Vanuatu, New Caledonia, Solomon Is., Fiji (Galil 2001a 2007; Galil & Ng 2010). Indian records comprise material collected off Vishakhapatnam, Andhra Pradesh (Bay of Bengal) and off Kerala (Devi et al. 1988a, b).