On a collection of brachyuran crabs from Lakshadweep, Indian Ocean (Crustacea: Decapoda: Brachyura) Author Devi, S. Suvarna Author Mendoza, Jose C. E. Author Ravinesh, R. Author Idress Babu, K. K. Author Kumar, A. Biju Author Ng, Peter K. L. text Zootaxa 2019 2019-06-06 4613 3 477 501 journal article 26571 10.11646/zootaxa.4613.3.4 3208ca31-041c-4f91-a7d8-eda1c7a6bf00 1175-5326 3239869 72D5CBE3-4121-4C22-989C-F27075EDFB90 Ocypode ceratophthalmus (Pallas, 1772) Material examined. 2 males (40.0 x 34.9 mm , 64.6 x 52.7 mm ) ( DABFUK ), Kadamat, 28 June 2013 ; 1 female (67.7 x 59.2 mm ) ( DABFUK ), Minicoy, 20 August 2013 . Remarks. Ocypode ceratophthalmus (Pallas, 1772) as currently understood is a species complex, currently under study by P.J.F. Davie, H.-T. Shih and P.K.L. Ng, with three genetically distinct forms present in the Indian Ocean. Two are the commonly recognised white-and-maroon morphs and are morphologically close, but can be separated by details of the stridulatory apparatus on its chela. One white-maroon morph represents Ocypode ceratophthalmus sensu stricto , which occurs on islands as well as continental landmasses as well as in most of Southeast Asia and East Asia . The second white-maroon morph is known mostly from isolated islands and appears allied to O. pallidula Hombron & Jacquinot, 1846 . Whether it is a new species or there is older name now listed under its extensive synonymy will need to be established. The third morph is the most distinct, with a prominent green to greenishyellow coloration in life and a diagnostic stridulatory structure on its chela. This green morph is almost certainly a new species and is known only from islands in the Indian Ocean (see also Orchard 2012 ; Ma et al. 2018 ). All the material observed in the islands were of the green morph. The species was also observed on eight islands: viz; Agatti, Kavaratti, Amini, Chetlat, Androth, Bitra, Kilton and Kalpeni but specimens were not collected.