Oratosquillina quinquedentata

Oratosquillina quinquedentata (Brooks, 1886) (Fig. 3F) Cancer (Mantis) digitalis Herbst, 1793: 92–96, pl. 33 fig. 1.— Ahyong & Low 2013: 597, fig. 1A. Squilla quinquedentata Brooks, 1886: 21, pl. 1 fig. 3, pl. 2 fig. 6.— Kemp 1913: 52. Oratosquilla quinquedentata. — Manning 1978c: 23–25, fig. 12.— Ghosh 1987: 310. Oratosquillina quinquedentata. — Ahyong 2001: 295–298, fig. 144.—Ahyong & Chan 2008: 61, 65, 66.— Ahyong & Low 2013; 597, fig. 1b. Material examined. FSI/VIZAG/CRUST. 225, 3 females (TL 99–121 mm), 21°00.4’N, 87°33.0’E, 32–33 m, coll. K. Silambarasan, 19 March 2020. Remarks. Our specimen closely aligns with the description provided by Manning (1978c). While this species closely resembles Oratosquillina nordica Ahyong & Chan, 2008, it is clearly distinguishable by the structure of the anterior lobe on the lateral process of the sixth thoracic somite. In O. quinquedentata, the anterior lobe is approximately equal in length and width, with its width being about half that of the posterior lobe. It has a broad, trapezoidal shape, unlike the anterior lobe of O. nordica, which is more slender, finger-like, and nearly twice as long as its width (Ahyong & Chan 2008). Distribution. Arafura sea, Australia, and India (Ahyong 2001; Trivedi et al. 2020).