u 



The branahial formula of -Drowa'rt. E('!/;p/(M and D. cranioides is as follows, 

 but iu D. unidentata the ejpipodite is absent from the chelipeds :— 



Arthrohranchise. 



Total l+-lep. f) 4 4 = 14+4 ep. 



The posterior arthrobranchitB of somites XI and XII are short and abruptly 

 truncated. 



Distribution : off the shores of all tropical and Avarmer temperate seas round 

 the globe, from the West Indies eastwards to Australia, and extending as far 

 north as the English Channel and Japan, in shallow water usually. 



Key to the Indian species of Dromia. 



I. An epipodite on the chelipeds : antero-lateral border of the carapace 

 cut into teeth : — 



1. Carapace in the adult broader than long, the median frontal 



tooth prominent in a dorsal view : last two pairs of legs of 



nearly equal size ... ... ... ... D. ruvipJai. 



2. Carapace in the adult at least as long as broad, the median 



frontal tooth very inconspicuous in a dorsal view : last pair 



of legs much longer than the penultimate pair ... D. cranioides. 



II. No epipodite on the chelipeds: antero-lateral border of the carapace, 

 between the orbit and the cervical groove, entire : both the anterior 

 and the posterior borders of the propodite of the last pair of legs 

 end in large spines ... ... ... ... ... D. uiAdentata. 



Dromia Bumpliii, Fabr. Plate II., fig. 4. 



Dromia Rumphii, Fabricius, Ent. Syst. Suppl., p. 360. 



[Ramph (92), Seba (94) ] Milne Edwards (79), De Haan (23), Stimpsou (99), Tozzetti (103), Hilgendorf (45), 

 Miers (67), Walker (105), Ortmann (82), Henderson (43), Alcock (3). 



For references see J. A. S. B., LXVIII.. pt. 2, 1899, p. 137. 



All parts, except the tips of the fingers and dactyli thickly covered with a 

 harsh tomentum, with sometimes scattered tufts of longer hair on the carapace. 



Carapace in adults broader than long, strongly convex, smooth ; the cardiac 



