254 
A, Alcock —Carcinological Fauna of India. 
[No. 2, 
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 mimitus, A. Milne-Edwards, loc. cit. pi. xix. figs. 7-12. 
Carapace elongate, suhcylindrical, 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 hail's 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. 
Macrocceloma, Miers. 
Macrocceloma , Miers, Journ. Linn. Soc., Zool., Yol. XIY. 1879, p. 665; and 
* Challenger ’ Brachyura, 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 antennee 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. 
