292 Carcinological Fauna of India. 



The antennnles are almost hidden by the much larger and stouter 

 antenna^, as in Notopns. 



The maxillipeds, legs, sternum and abdomen are as in Notopus. 



109. Cosmonotus grayii, Ad. & Wh. 



Cozmonotus grayii, Adams and White, ' Samarang' Crust, p. 60, pi. xiii. fig. 3 

 (P. Z. S. 1847, p. 227, fig., and Ann. Mag. Nat. Hist. (2) II. 1848, p. 287) : Stimpson, 

 Proc. Acad. Nat. Sci. Philad. 1858, p. 241 : Henderson, ' Challenger ' Anoinura, p. 

 33 : [Cano, Boll. Soc. Nat. Napol. III. 1889, p. 256]. 



The carapace is unevenly covered with pits and dents which give 

 it, when examined with a lens, a somewhat squamiform appearance. 

 There is a small denticle on either side of the frontal notch and a claw- 

 like spinule at either antero-external angle of the carapace — this is all 

 the armature. The pterygostomian region is granular. The outer edge 

 of the exognath is thickly fringed with hair, the merus and the outer 

 margin of the ischium of the endognath are granular. 



The chelipeds are hairy along the dorsal edge, and the edges of 

 the legs — of the last pair especially — are hairy. The chelipeds are 

 also a good deal pitted and dented, like the dorsum of the carapace. 



The movable finger is rather strongly curved, and owing to the 

 prominence of a single tooth just beyond the middle of the cutting 

 edge, is curiously sickle-shaped. 



In the Iudian Museum collection is a single male from the 

 Persian Gulf. 



Raninoides, Milne Edwards. 



Raninoides, Milne Edwards, Hist. Nat. Crust. II. 196. 

 Raninoides, Henderson, 'Challenger' Anomnra, p. 27. 



Carapace remarkably elongate-obovate, strongly convex from side 

 to side, about twice as long as broad, its surface for the most part smooth, 

 the regions undefined. Fronto-orbital border slightly less than the 

 greatest width of the carapace. Eyes small but distinct, eyestalks 

 broadly dilated at base, orbits slightly oblique. 



Antennules about equal in size to the antennas : antenna? with a 

 stout peduncle and a rather short slender flagellum, the peduncle not 

 concealing the antennulary peduncle. Merus of the external maxil- 

 lipeds shorter than the ischium ; its edges slightly thickened and raised. 

 Sternum broad between the chelipeds and as far as the bases of the 

 second pair of true legs, then becoming extremely narrow. 



Last pair of legs abnormally short and slender, arising much in 

 advance of the penultimate pair. The abdomen in both sexes consists of 

 7 sepai'ate segments. 



297 



