1900.] A. Al cock— Cardiological Fauna of India. 429 



116. Clistocceloma balansas^ Edw. 



Clistocoeloma halansse, A. Milne Edwards, Nouv. Archiv. du Mus. IX. 1873, 

 p. 311, pi. xvii. fig. 1. 



The whole body and the appendages, except the tips of the dactyli 

 of the legs, are everywhere covered with a dark dense adherent fur, 

 amid which, on the dorsal aspect, are numerous clumps of tomentum 

 that look like tubercles : the legs, in addition, have a shaggy fringe of 

 coarse hair. 



Carapace square, as long as broad, somewhat depressed : when 

 denuded it is smooth and polished, with all the regions well defined and 

 boldly and symmetrically lobulated, and the post-frontal lobes promi- 

 nent, the outer ones being again subdivided into two tubercles. 



Front much more than half the breadth of the carapace, nearly 

 vertically deflexed, deepish, its free margin sinuous and turned up to 

 form a trenchant horizontal edge. 



The lateral borders of the carapace are cut, anteriorly, into three 

 lobes including the outer orbital angle. 



Chelipeds subequal, nearly similar in size in both sexes, not more 

 massive than the legs, shorter even than the 1st pair of legs, which are 

 little longer than the carapace. When denuded they are smooth, 

 except that the upper surface of the wrist is a little lumpy : the inner 

 border of the arm is a little convex distally, but does not expand into 

 an undoubted lobe : the palm is higher than long, but is by no means 

 swollen or massive, and in the male only its upper surface is traversed, 

 obliquely fore and aft, as close as possible to the upper border, by a 

 fine microscopically-pectinate crest: the fingers are subacute, though 

 slightly hollowed at tip, and have no wide gap between them wheu 

 closed, and the fixed finger is shorter and deeper than the dactylus, the 

 dactylus is nearly twice as long as the upper border of the palm, and in 

 the male its upper border is milled with about 14 or 15 lamellae. 



Legs markedly unequal : the third pair, which are the longest, are 

 not quite twice as long as the carapace. Tn all, the meropodites are 

 thin and broad, and the dactyli are not two-thirds as long as their 

 propodites. 



In the Indian Museum are a male and two females from the 

 Nicobars. The carapace of the largest is 19 millim. in either diameter. 



117. Clistocoeloma merguiense, de Man. 



Clistocoeloma merguiensis, de Man, Journ. Linn. Soc, Zool., XXII. 1888, p. 195, 

 pi. xiii, fig. 10, and Notes Leyden Mus. XII. 1890, p. 92 : and Zool. Jahrb., Syst,, 

 IX. 1895-97, p. 339, and X. 1898, pi. xxxi. fig. 40. 



