Description:-
Body yellowish white, uropods dark brown, middle and margins white towards their tips, telson dark brown with yellow seate. Rostrum straight in male while upcurved in females. Post orbital spine small and distinct; large antennal spine; small hepatic spine carinated abdominal segments 3-6, carina of 6th segment ends in spine; minute ischial spine on the first pereiopod; deep median dorsal sulcus on telson. The hepatic sulcus extends back to the middle of the carapace and anteriorly curves obliquely down towards the pterygostomian angle, becoming broader and less defined. Cardiac plate has 32 spinules. The zyzocardiac ossicle has two principal teeth and two rows of 9 to 10 teeth. The petasma reaches the bases of the third pair of pereiopods. Its greatest width across the distolateral projections is equal to its length. The distolateral projections taper distally and curve slightly forwards. The distomedian projections curve ventrally enclosing the distal opening of the petasma.
References:-
De Grave, S. (2014). Megokris sedili (Hall, 1961). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=377466 on 2015-03-12
Radhakrishnan, E. V.. V. D. Deshmukh, G. Maheswarudu, Jose Josileen, A. P., Dineshbabu, K. K. Philipose, P. T. Sarada, S. Lakshmi Pillai, K. N. Saleela, Rekhadevi Chakraborty, Gyanaranjan Dash, C.K. Sajeev, P. Thirumilu, B. Sridhara, Y Muniyappa, A.D.Sawant, Narayan G Vaidya, R. Dias Johny, J. B. Verma, P.K.Baby, C. Unnikrishnan, N. P. Ramachandran, A. Vairamani, A. Palanichamy, M. Radhakrishnan and B. Raju. (2012). Prawn fauna (Crustacea: Decapoda) of India - An annotated checklist of the Penaeoid, Sergestoid, Stenopodid and Caridean prawns. J. Mar. Biol. Ass. India, 54 (1): 50-72.
Radhakrishnan, E.V., Josileen Jose and Lakshmi Pillai, S. 2011 (Eds). Handbook of Prawns. Central Marine Fisheries Research Institute, Cochin, Kerala.
Thomas? MM (1969). Notes on some interesting penaeid prawns (Crustacea, Decapoda) from the southeast coast of India. Mar. bioh Ass. India, 11 (1 & 2): 191-197