1895.] A. Alcock — Carcinological Fauna of India. 253 



Micippa margaritifera, Henderson. 



Micippa margaritifera, Henderson, Trans. Linn. Soc, Zool., 1893, p. 348, 

 pi. xxxvi. figs. 5-7. 



Carapace symmetrically sculptured, closely crisply and finely 

 granular, and with the hepatic regions deeply excavate : there are three 

 coarse spinules, disposed in a triangle base outwards, on efther branchial 

 region, and a denticle at the anterior boundary of the branchial region ; 

 and on the posterior margin are three smooth polished globules " exactly 

 resembling pearls " inset. 



The rostrum is long, vertically deflexed in both sexes, and incurved 

 at the tip, which ends in two shallow lobes — the outer angle of each 

 lobe being marked by a spinule. 



The basal antennal joint has its antero- external portion greatly 

 produced to complete the floor of the orbit. 



The chelipeds in the male are a little longer than the carapace, and 

 have the palms broadened and inflated, and the fingers closely apposable 

 only at the tip. In the female the chelipeds are very much slenderer 

 than the other legs, are only as long as the post-orbital portion of the 

 carapace, and have the hand very slender and tapering. The ambula- 

 tory legs are remarkable for their large obtriangular foliaceous mero- 

 podites, which in the first pair are specially remarkable, as they are 

 closely apposable to the front, to form, as in Calappa, a shield. 



In the Museum collection are specimens from both sexes from the 

 Andamans, from Ceylon (34 fms.), and from the Maldives (20-30 fins.). 



Micippa margaritifera, var. parca nov. I distinguish, provisionally, 

 as a variety, two ovigerous females from the Andamans, in which the 

 middle "pearl" on the posterior border is replaced by a group of 

 spinules, and in which the meropodites of the ambulatory legs are even 

 more broadly foliaceous. 



Cyphocarcinu8, A. M.-Edw. 



Cyphocarcinus, A. Milne-Edwards, Nouv. Archiv. du Mus., IV. 1868, p. 73; and 

 Miers, Journ. Linn. Soc, Zool., XIV. 1879, p. 664. 



Carapace elongate, subcylindrical, with the gastric region greatly 

 elevated ; the anterior part of the gastric region, along with the front, being 

 vertically deflexed. The rostrum is formed of two little horns, each of 

 which is sharply bifurcate at the tip, one branch being directed forwards 

 and outwards, the other being recurved upwards. The eyes are small 

 and are sunk in small tubular orbits formed in the typical Periceroid 

 manner. The antennae are small : the basal joint has its antero external 

 angle separated from the rest of the joint by a deep cleft. The external 



