Carcmological Fauna of India. 367 



61, Dotilla clepsydrodactylus, n. sp. 

 Near D. Wichvianni, de Man. 



The sculpture of the dorsum of the carapace is like that of 

 D. Blanfordi, only the grooves are much deeper cut aud the groove 

 between the post-gastric region and the postero-lateral angle of the 

 carapace is double : the sculpture of the side wall of the carapace is 

 like that of D. Blanfordi. 



In the external maxillipeds the merus is not twice as big as the 

 ischium, and its sculpture consists of a single simple convolution 

 parallel with the outer border, the inner half of its surface being quite 

 smooth — as is D. intermedia. 



The orbits are shallow but are quite perfect. 



The chelipeds, measured all round their curve, are not twice the 

 length of the carapace and have no spine on the arm. The fingers are 

 much longer than the palm : in the adult male they are extremely slender, 

 and each has a large tooth arranged so that tvhen the tips of the fingers are 

 closely apposed these two teeth meet and leave an hour-glass-shaped space 

 between the closed fingers. 



Legs a little longer than the chelipeds ; their meropodites are 

 slightly but distinctly dilated and all have a tympanum : their dacfcyli 

 are all longer than their propodites, and in the last pair the dactylus is 

 very long, slender, straight, aud fluted: No sternal tympana. 



Colours, speckled like tlie sand in which they live. 



In the Indian Museum are eight specimens from False Point on 

 the sea face of the Mahanaddi Delta. The carapace of the largest is 5 

 millim. long and 6 millim. broad. 



62. Dotilla hrevitarsis, de Man. 



Dotilla hrevitarsis, de Man, Joarn. Linn. Soc., Zool., XXII. 1887-88, p, 130, 

 pi. ix. figs. 1-3 (1888). 



The whole carapace is grooved and areolated (but the sculpture is 

 not very deep) as follows : — 



A strong groove runs fore aud aft down the middle of the carapace, 

 another runs parallel with the posterior border, and on each side 

 another takes a sinuous course along each lateral border : other short 

 and rather indefinite grooves join the median and lateral gi'ooves. 



The subhepatic and pterygostomian regions have the usual convo- 

 luted sculpture. Orbits shallow, but distinct. 



The merus of the external maxillipeds is much larger than the 

 ischium : its whole surface is sculptured, the sculpture taking the form 

 of a W-shaped convolution. 



709 



