On some commensal anomuran and brachyuran crabs (Crustacea: Decapoda) off Visakhapatnam, Northwestern Bay of Bengal Author Silambarasan, Krishnan Fishery Survey of India, Beach Road, Visakhapatnam, Andhra Pradesh, India Author Kar, Annada Bhusan Fishery Survey of India, Beach Road, Visakhapatnam, Andhra Pradesh, India Author Prasad, Gummadi Venkata Ankineedu Fishery Survey of India, Beach Road, Visakhapatnam, Andhra Pradesh, India Author Pattnayak, Sujit Kumar Fishery Survey of India, Beach Road, Visakhapatnam, Andhra Pradesh, India Author Das, Pratyush Fishery Survey of India, Beach Road, Visakhapatnam, Andhra Pradesh, India Author Reddy, Dwarampudi Bhami Fishery Survey of India, Beach Road, Visakhapatnam, Andhra Pradesh, India Author Ramalingam, Lakshmana Perumal Fishery Survey of India, New Fishing Jetty, Sasson Dock, Colaba, Mumbai, India text Zootaxa 2023 2023-08-10 5325 4 541 555 http://dx.doi.org/10.11646/zootaxa.5325.4.5 journal article 272427 10.11646/zootaxa.5325.4.5 59cc84b2-3357-4ac5-a61d-0d7d5d032977 1175-5326 8243713 086F3349-9C7C-4AAD-986F-FF0CE69CDF1E Pisidia gordoni ( Johnson, 1970 ) ( Fig. 3E ) Restricted synonymy: Porcellana (Pisidia) gordoni Johnson, 1970: 29–31 , fig. 3. Pisidia gordoni .— Haig, 1973: 283 .— Haig, 1978: 707 .— Haig, 1981: 277 .— Tirmizi et al. , 1989: 34 , fig. 21.— Morgan, 1990: 32.— Yang & Sun, 1990: 4 , figs. 5, 6.— Haig, 1992: 318 , fig.14.— Komai, 2000: 366 .— Siddiqui & Kazmi, 2003: 88 .— Patel et al . 2022: 37 . Material examined. FSI/ CRUST : 235, 1 male (CL 5.2 mm , CW 4.6 mm ), 18°14.0’N , 84°10.1’E , 42–43 m , on desmosponges, coll. K. Silambarasan , 15 December 2020 . Distribution. Delagoa Bay, Mozambique , Madagascar , Red Sea, Gulf of Aden and Gulf of Iran , Hong Kong , Singapore , Java, Sri Lanka and tropical Australia ( Haig 1981 ); India ( Patel et al. 2022 ); recorded here for the first time reported from Bay of Bengal. Commensalism. This species is usually observed in lower intertidal areas, exclusively inhabiting the cavity of Desmospongiae. In the present study, P. gordoni was collected from the Desmospongiae on the northeast coast of India at a depth of 42– 43 m . Similarly, Haig (1966c) also reported the species from around 50 m depth. Hiller et al. (2010) collected P. gordoni from under stones of the lower intertidal zone of St George Island, Goa. Similarly, Beleem et al. (2017) also reported P. hendersoni from cavities of yellow sponges from intertidal zone of Gulf of Kutch, Gujarat . Remarks. This species is endemic to the Indian Ocean, and closely resembles Polyonyx splendidus ( Sankoli, 1963 ) , which also occurs in the cavities of sponges. Polyonyx splendidus differs from P. hendersoni by the meral lobe of the chelipeds, carpus and chelipeds being covered with plumose setae ( Hiller et al. 2010 ).