the Scorpion ft of India. 75 



mantis very wide, as wide as long, its inner border strongly 

 arched, tlic inflation beginning abruptly at the base of the 

 immovable finger, so that tiie angle tims made is scarcely 

 larger tlian a right angle ; the inner edge denticulate in front, 

 smooth behind ; the upper surface strongly convex exter- 

 nally, where it rises vertically from the keel of the hand-back, 

 covered with low anastomosing ridges and tubercles, which 

 show a strong tendency to run into longitudinal crests in the 

 external half of the hand; lower surface nearly smooth ; length 

 of the liand-baek much less than that of the movable digit 

 and much less than the width of the hand, which is a little 

 less than the length of the movable digit ; the immovable 

 digit with a very distinct smooth keel upon it. 



Leffs almost entirely smooth, the spines on the feet of the 

 two posterior pairs 4 or 5 in number on each side. 



Pectines with 15 teeth on each side. 



Qenital operculum elongate, cordate. 



Measurements in millimetres. — Total length (without 

 aculens) 72, of carapace 12"8, of tail-segments 1-5 30*5 ; 

 width of brachium 4'6, of manus 11 "5; length of hand-back 

 7-8, of movable digit 12. 



A single dried (probably male) specimen, unknown locality. 



This species is so well marked that, in spite of the absence 

 of locality, I have not hesitated to describe it. Its most 

 noticeable features are — (1) A very shallow median excision 

 and truncate frontal lobes on the carapace ; (2) the presence 

 of four distinct keels on the last abdominal sternite ; (3) the 

 conspicuousness of the anterior inferior caudal keels ; (4) the 

 very wide hand, with vertical external surface and very widely 

 rounded inner edge. 



N.B. — Since the above was written the Museum has ac- 

 quired from Mr. F. Moore a small collection of scorpions, 

 which, in addition to the types of Scorpiops tenuicauda and 

 Chcerilus insignis^ contains a small (probably female) example 

 of a Scor^no which appears to be referable to this species 

 and is ticketed " N. India." This specimen agrees closely 

 with the type in most of its features, but the carapace is more 

 deeply and more characteristically excavated raesially and 

 the last abdominal sternite is less conspicuously keeled. 

 Moreover, the genital operculum is not posteriorly elongate, 

 and there are 12-13 peetinal teeth. 



Scorpio gravimanuSj sp. n. 



(J . Colour ferruginous, legs piceous. 



Carapace as long as caudal segments l + 2 + | of 3, smooth 



