Quadrella coronata Dana, 1852

Silambarasan, Krishnan, Kar, Annada Bhusan, Prasad, Gummadi Venkata Ankineedu, Pattnayak, Sujit Kumar, Das, Pratyush, Reddy, Dwarampudi Bhami & Ramalingam, Lakshmana Perumal, 2023, On some commensal anomuran and brachyuran crabs (Crustacea: Decapoda) off Visakhapatnam, Northwestern Bay of Bengal, Zootaxa 5325 (4), pp. 541-555 : 548-549

Quadrella coronata Dana, 1852

( Fig. 4B )

Restricted synonymy:

Quadrella coronata Dana, 1852: 84 , pl. 16.— Alcock, 1898: 266.— Borradaile, 1902: 226. — Rathbun, 1911: 235.

Quadrella coronata var. granulosa Borradaile, 1902: 266 .

Quadrella boopsis granulosa Sakai, 1965: 164 , fig. 20, pl. 80 fig. 5.— Guinot, 1967: 275. — Serene, 1973: 205, figs. 5, 10, 23–26.

Quadrella granulosa Sakai, 1976: 512 , text fig. 271, pl. 184 fig. 3.— Castro et al., 2004: 56, pl. 4B.— Kathirvel, 2008: 183.— Rao, 2010: 198.— Dev Roy & Nandi, 2012: 207. — Trivedi et al., 2018: 74.

Material examined. FSI/ CRUST: 238, 1 male (CL 9.0 mm, CW 6.0 mm), 1 female (CL 10.0 mm, CW 8.0 mm), 19°59.4’N, 86°47.6’E, 57–59 m, on Antipathes sp. , coll. K. Silambarasan, 17 October 2019 .

Distribution. South Africa, Madagascar, Amirante Island, Seychelles, Maldive Islands, Ceylon, Philippines, Japan, Australia ( Galil 1986) and India ( Trivedi et al. 2018).

Commensalism. Commonly associated with the gorgonian Antipathalia sp. ( Sakai 1980). Kathirvel (2008) recorded the species from Gorgonella sp. Our specimens were collected from Antipathes sp.

Remarks. The characteristic features of Q. coronata are in the spination of the merus of the cheliped, twospined carpus, tuberculate supraorbital angle and oblique anterolateral margins of the carapace are clear diagnostic characters of the species ( Castro et al. 2004). Our specimens agree in all respects with these characters.

Figures

FIGURE 4. Brachyura associated with cnidarians collected from northwestern Bay of Bengal:A, Quadrella maculosa Alcock, 1898; B, Quadrella coronata Dana, 1852; C, Sphenomerides trapezioides (Wood-Mason in Wood-Mason & Alcock, 1891); D, Dorippoides facchino (Herbst, 1785).