1895.] 
A. Alcock— Carcinological Fauna of India. 
221 
Body closely beset with short knobbed hairs, among which longer 
setae are interspersed. 
Carapace subpyriform, armed with numerous long sharp spines as 
follows:—four, arranged in a triangle base forwards, on the gastric 
region; one on the cardiac, and one (very large) on the intestinal 
region ; one on either hepatic region; two or three on either pterygo- 
stomian region; and, finally, on either branchial region three dorsal and 
three lateral: between these large spines some spinules and sharp 
grannies are interspersed. In the male there is a pair of strong spines 
on the sternum between the clielipeds ; and each abdominal tergum has 
a strong median spine: in the female five parallel rows of spines are 
found on the ventral surface, three of which belong to the abdominal 
terga, and one on either side to the sternum. 
The rostral spines are short (about one-fifth the length of the 
carapace in the male, and rather less in the female), and divergent: 
the accessory spinule is found on their inner margin near the tip. 
The basal antennal joint has a sharp spine at its antero-external 
angle, and a tooth near the middle of its outer margin. The antero- 
external angle of the prominent supra-ocular eave is surmounted by a 
sharp spine. 
The chelipeds in the female and young male are rather more 
slender than the other legs, and are a little longer than the carapace 
and rostrum : the palms are slender and subcylindrical, and are nearly 
three times as long as the fingers, which are nearly straight and appos- 
able throughout. The ambulatory legs are slender, and have very long 
slender dactyli : the first pair, which are much the longest, are nearly 
three times as long as the carapace and rostrum. 
In the Museum collection are specimens from the Andaman Sea 
down to 40 fathoms. 
Chorilibinia, Lockington, Miers. 
Chorilibinia, Lockington, Proc. Ac. Nat. Sci. Calif., Vol. VII. 1876, p. 69. 
Chorilibinia, Miers, Journ. Linn. Soc., Zool., Yol. XIY. 1879, p. 45; and ‘Chal¬ 
lenger ’ Brachyura, p. 45. 
Chlorolibinia, Haswell, Cat. Austral. Crust., p. 17. 
Carapace broadly subpyriform, spinose. Rostrum formed of two 
spines which are coalescent in their basal half. The commencing orbit, 
which does not afford much concealment to the fully retracted eye, is 
formed by a little-prominent supra-ocular eave, and a cupped (and 
isolated) post-ocular tooth. The basal antennal joint is broad, has its 
antero-external angle more or less produced, and has also a lobe on its 
