DESCRIPTIONS OF SCORPIONS FROM INDIA. 115* 



limbs ; but easily distinguishable by its much shorter and smoother 

 tail. The tail in the male is a little more than three times the 

 length of the carapace which is equal to its first two segments and* 

 half the third, the first four segments being much less than twice the 

 length of the carapace. In the male of P. bengalensis the carapace just 

 exceeds the length of the first two segments, the first four being 

 about twice its length. In this new form, moreover, the crests on 

 the tail, with the exception of those on the lower side of the fifth and 

 the superior crests on segments 1 — 4, which have a terminal granule, 

 are not denticulate, being merely roughened and notched by the 

 pores from which the bristles arise ; so too are the intercarinal spaces and 

 the vesicle smooth ; whereas in P. bengalensis the vesicle and all the 

 crests, except the inferior ones on segments 1 — 3, are denticulate, and 

 the superior and lateral intercarinal spaces are partially granular. 

 The female differs in corresponding features from the female of 

 P. bengalensis, having a short tail, of which the vesicle and crests are 

 not granular, the tail is lessthan three times the length of the carapace, 

 which is as long as the first two segments and two-thirds of the third, 

 while twice the length of the carapace, and exceeds the length of the 

 first four segments and half the fifth. 



The sexual characters are well marked, the male having finely 

 granular terga, longer and thinner chelae, larger pectines with 14 — 16 

 teeth, the genital operculum wider than long, the tail longer, and the 

 vesicle inflated (see measurements). In the female the terga are smooth, 

 the operculum is posteriorly narrowed and longer than wide, the 

 pectines have 10 — 13 teeth, and the vesicle is small. 



Measurements in millimetres. $ . Total length 80, length of carapace 

 12, of tail 3-9, width of fifth segment 3, of vesicle 4, height of vesicle 

 3"5, length 5*3, length of hand-back 11, width of hand 8. $. Total 

 length 76, of carapace 12, of tail 35, width of its fifth segment 2*8, of 

 vesicle 3, height of vesicle 2*8, length 4*8 ; length of hand-back 9, 

 width of hand 9' 2. 



Locality. — Gwalior in Central India, adults and young of both 

 sexes obtained by the Medical Officer of H. H. the Maharajah of 

 Scindia ; also Bhopal in Central India, a single adult male sent by 

 Surseon-Lieutenant-Colonel Dane. . 



