138 A. Alcock — Carcinological Fauna of India. [No. 3, 



wrist and also along the upper border of tlie hand : all these dentations 

 tend to disappear with age, but two tubercles at the distal end of the 

 outer surface of the wrist are persistent. 



The last two pair of legs are about equal in length, being hardly- 

 half as long as either of the first two pair : their propodites are much 

 shortened and their dactyli are claw-like, forming chelse with the 

 opposing spines at the end of the propodites. 



Abdomen of male with a broad convex ridge down the middle 

 line. 



Sternal tubercles of female very prominent. 



lu the Indian Museum are specimens from the Persian Gulf, 

 Malabar coast (28 to 49 fms.), Ceylon, Coromandel coast, Orissa coast 

 (25 fms.) and Gulf of Martaban (67 fms.) — also 2 from Mauritius. 



The largest specimen, from Mauritius, is 5| inches across the 

 carapace. 



Distribution : Indo-Pacific Seas from the Red Sea, Mozambique, and 

 Mauritius, to Japan. 



5, Dromia cranioides^ de Man. 



Dromidia cranioides, de Man, Journ. Linn. Soc. Zool., XXII., 1887-88, p. 208, 

 pi. xiv. figs. 6-8. 



Carapace etc. tomentose. Carapace globose, a little longer than 

 broad, perfectly smooth except for the " cervical " groove and for two 

 small faint elevations side by side just behind the front. 



Front cut into 3 teeth, the middle one of which is so small and on 

 a plane so much lower than the others that it is hardly seen in a dorsal 

 view. 



A strongly marked acuminate tooth near the middle of the upper 

 border of the orbit is equivalent to the inner supra-orbital angle of 

 higher Brachyura. Sub-orbital lobe dentiform, very prominent. Outer 

 orbital angle well defined, dentiform. 



True antero-lateral borders of the carapace cut into 3 or 4 teeth ; 

 when 4, it is by intercalation of a little tooth close to the base of the 1st. 

 A tooth, bat not a strongly pronounced one, at the outer angle of the 

 buccal cavern. 



Postero-lateral borders slightly convergent, with one tooth placed 

 immediately behind the branchial or " cervical " groove. 



Borders of arm granular or obtusely denticulate, as also are the 

 upper border of the wrist and of the hand : two tubercles at the distal 

 end of the outer surface of the wrist. 



The last two pair of legs have a claw-like dactylus which meets, in 

 a cheliform manner, a spine at the end of the corresponding propodite. 



