310 JOURNAL, BOMBAY NATURAL HISTORY SOCIETY, 1892. 



6\ The upper surface of the hand evenly convex from 

 the keel of the ' hand-back ' to the inner edge. 



a^. Hand with its inner border and its upper surface 

 very convex, remarkably wide, as wide as it is long, the 

 smallest width, i. e., at the base of fingers, greater than the 

 length of the 'hand -back' ; in $ the tail is just about four 

 times as long as the cephalothorax, which is slightly shorter 



than the first two segments ccEsar (C. Koch) . 



6^. Hand with inner border and upper surface less 

 convex ; longer than wide, length of the ' hand-back ' 

 greater than the least width of the hand ; tail in S less 

 than four times as long as the cephalothorax, which is 

 considerably longer than the first two segments. 



a^. Cephalothorax entirely covered with coarse gra- 

 nules or tubercles ; tergites also coarsely granular pos- 

 teriorly ; the upper surface of the tail coarsely granular, 

 the granules forming distinct longitudinal series 



scaher (Thorell). 



h'^. The cephalothorax not granular throughout, 

 smooth above ; tergites and upper surface of tail smooth 

 or nearly so. 



rt*. The hand narrower, its width in the (5 less, in 

 2 about equal to or a little greater than the length of 

 the 'hand-back.' 



a^. The upper surface of the hand covered thickly 

 with distinct tubercles and much less convex, its 

 inner border in consequence being sharper; the 

 inferior keels of the 4th caudal segment almost 

 smooth; the vesicle more slender and pyriform 



phipsoni (sp. n.) 



b^. The upper surface of the hand very convex 

 and smoother, being completely covered with 

 indistinctly defined, low, anastomosing tubercles; 

 the inferior keels of the 4th caudal segment 

 denticulate ; the vesicle stouter, less pyriform, with 



the aculeus more abruptly curved hengalensis 



(C.Koch). 



