254 Carcinological Fauna of India. 



maxillipeds have the merus dilated at both the internal and external 

 anterior angles. The chelipeds in the female are not longer than the 

 2nd pair of legs and are hardly stouter. The ambulatory legs have the 

 dactylus recurved, strongly spinate along the posterior edge — prehensile. 

 The sternum in the female forms a hollow, the mouth of which is com- 

 pletely closed by the broad and perfectly flat abdomen. 



? Cyphocarcinus minutus, A. M.-Edw. 



Cyphocarcinus minutus, A. Milne- Edwards, loc. cit. pi. xix. figs. 7-12. 



Carapace elongate, subcylindrical, the lateral borders nearly parallel 

 in their posterior two-thirds, gently convergent anteriorly. Besides the 

 greatly elevated and anteriorly deflexed gastric region, there are two 

 or three slight bulgings on the side of either branchial region, a slight 

 elevation on the cardiac region, and a median prolongation — overlapping 

 the abdomen — of the posterior border. The hepatic regions are very 

 small and are not visible from the dorsal aspect. The supra-orbital 

 border bears one or two little teeth. The second joint of the antennal 

 peduncle is much enlarged, the third is clavate, and the flagellum is 

 hardly to be distinguished from the hairs on the third joint. The 

 chelipeds in the female are smooth, but the legs are hairy and have the 

 joints, especially the merus, somewhat broadened. Two adult females, 

 one from the Pedro Shoal, the other from the Andamans, are in the 

 Museum collection. The larger of the two is 10 millim. long and has 

 the carapace deeply encrusted by a colony of calcareous Polyzoa. 



Macrocgeloma, Miers. 



Macrocoeloma, Miers, Journ. Linn. Soc, ZooL, Vol. XIV. 1879, p. 665; and 

 ' Challenger ' Brachynra, p. 79. 



Entomonyx, Miers, Zoology H. M. S. ' Alert,' p. 525. 



Carapace subpyriform, but broadened anteriorly by the projecting 

 orbits : the dorsal surface unarmed, or tuberculated, or with a few 

 long spines : the margins without a series of elongated lateral spines, 

 but often with a strongly developed lateral epibranchial spine, preced- 

 ed by some smaller spines. The spines of the rostrum are well deve- 

 loped. The eyes are retractile within roomy projecting tubular orbits, 

 which are formed much as in Micippa. 



The antennae have the basal joint considerably enlarged and armed 

 distally with one or two spines. The mobile portion of the antenna is 

 sometimes concealed by the rostrum, sometimes exposed. The merus 

 of the external maxillipeds is broader than the ischium, and notched 

 at the internal angle for the insertion of the palp. 



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