On the Indian species of Eurycarcinus A. Milne-Edwards, 1867, Heteropanope Stimpson, 1858, and Pilumnopeus A. Milne-Edwards, 1867 (Decapoda: Brachyura: Pilumnidae) Author Trivedi, Jigneshkumar Hemchandracharya North Gujarat University, Department of Life Sciences. Author Mitra, Santanu Zoological Survey of India. F. P. S. Building, 27 J. L. Nehru Road, Kolkata- 700016, West Bengal, India. & Conservatory Drive, 117377 Singapore. & A-C 089 - & - 584160 Aadeee Author Patel, Pooja Hemchandracharya North Gujarat University, Department of Life Sciences. Author Maheta, Niketa The Maharaja Sayajirao University of Baroda, Faculty of Science, Department of Zoology, Marine Biodiversity and Ecology Laboratory. Vadodara, Gujarat, India. Author Patel, Krupal The Maharaja Sayajirao University of Baroda, Faculty of Science, Department of Zoology, Marine Biodiversity and Ecology Laboratory. Vadodara, Gujarat, India. Author Ng, Peter K. L. National University of Singapore, Faculty of Science, Lee Kong Chian Natural History Museum. & A 53 - text Nauplius 2021 e 2021004 2021-02-08 29 1 18 http://dx.doi.org/10.1590/2358-2936e2021004 journal article 10.1590/2358-2936e2021004 2358-2936 10716468 51870B2A-C089-4A53-9EA2-584160AADEEE Eurycarcinus integrifrons De Man, 1879 ( Figs. 2 , 9D–F ) Eurycarcinus integrifrons De Man,1879: 55 , 56; Apel, 1994b: 415 , 433, 434; Al-Ghais and Cooper, 1996: 425 , 426; Apel, 2001: 97 ; Naderloo and Sari, 2007: 344 , tab. 1; Özcan et al. , 2010: 507 , fig. 2; Naderloo and Türkay, 2012: 36 ; Naderloo et al. , 2013: 449 , 456, tab 2; Naderloo, 2017: 303 , figs. 26.10b, 26.11, 26.12; Ng et al. , 2018: 484 , figs. 1C,3B, 4B, 5B, 6B, E, 7B, E, H, 8B, F, G; Trivedi et al. , 2018: 59 (list). Eurycarcinus orientalis — Alcock, 1898: 210 , 211 (part); Chhapgar, 1957: 436 , 437, pl. 11d–f; Tirmizi et al. , 1986: 8–10 , fig. 3a–d; Tirmizi and Ghani, 1996: 30–32 , fig. 10;? Hornby, 1997: 16 (part) [not Eurycarcinus orientalis A. Milne-Edwards, 1867 ]. Litocheira ( amoyensis Gordon?) — Stephensen, 1946: 169–171 , fig. 46; Titgen, 1982: 252 (list) [not Litocheira amoyensis Gordon, 1931 = Heteropilumnus amoyensis (Gordon, 1931) ]. Eurycarcinus sp. (? integrifrons ) — Apel and Türkay, 1992: 194–195 , 204–205. Eurycarcinus bengalensis Deb, 1999: 376 (part). Type locality. Unknown , probably India ( cf. Naderloo 2017 ). Material examined. 5 males (CW 13.2–28.2 mm , CL 9.66– 9.9 mm ), 5 females (CW 11.3–25.2 mm , CL 18.6– 8.14 mm ), LFSC .ZRC-63, Lakhpat (23˚50’01”N 68˚46’26”E), Gujarat State , India , 27 March, 2015, coll. J. Trivedi ; 2 ovigerous females (CW 13.9 mm , CL 10.4 mm ; CW 21.3 mm , CL 15.3 mm ), ZSI-C3349/2 (part), Chamta Block, Sunderbans Tiger Reserve , West Bengal State , India ( paratypes of Eurycarcinus bengalensis Deb, 1999 ) . Remarks. The specimens examined in the present study agree with the description and figures of the species in Ng et al. (2018) . Eurycarcinus integrifrons differs from E. natalensis and E. orientalis in the following characters: carapace subquadrate ( Fig. 2A ) (transversely ovate in E. natalensis and E. orientalis ; cf. Ng et al. , 2018 : figs. 1A, B, C; 6A, B); frontal margin weakly bilobed ( Fig. 2B ) (distinctly bilobed in E. natalensis and E. orientalis ; cf. Ng et al. , 2018 : figs. 1A–C; 6A, B). The species is so far reliably reported from Gulf of Aden, Persian Gulf, Gulf of Oman , and Pakistan ( Naderloo, 2017 ; Ng et al. , 2018 ). The present study is actually the first confirmed record of the species from India , even though Naderloo (2017) suggested that the type may have originally been from there. The specimens from Gujarat (Kolak and Umarsadi) and Maharastra ( Mumbai ) (recorded as E. orientalis ) in Chhapgar (1957) should be referred to E. integrifrons ; his figures leave no doubt. These records of Chhapgar (1957) thus extend the known range of E. integrifrons nearly 900 kilometers further south along the coast of western India . The two ovigerous female paratypes of E. bengalensis Deb, 1999 , are here also re-identified as E. integrifrons , extending the range of this species to West Bengal state (see remarks for next species).