SCORPIOPS. 73 



thicker and longer than in S. montanus, about three times as long as 

 the carapace, 1st segment at least as wide as the humerus ; keels 

 and granulation as in S. montanus; vesicle as in that species, but with 

 a distinct semicircular sulcus at the base of the aculeus on each side. 

 ChelcK more resembling those of S. leptochirus than those of S. mon- 

 tanus, except for two spiniform teeth on the brachium ; brachium 

 shorter than carapace, with inferior rows of 9-10 (in one case 11) 

 setal pores, 9 commonly occurring in young ; the crests weaker 

 and the area at the base of the anterior spines not so prominent ; 

 hand constantly with only three pores in a curved series below, all 

 its crests much weaker than in S. montanus, width of its dorsal area 

 between the keels much less than half the movable finger; the 

 underhand almost twice the width of the hand, but not quite so 

 long as the movable finger, which is at least as long as the cara- 

 pace, but is scarcely noticeably lobate, outer row of supernumerary 

 teeth, as far back as lobe, 12, inner row 6. Granular crests on 

 under side of femora of legs weaker than in S. montanus. Pectinal 

 teeth 6-8. 



<S . Very like the female ; tail scarcely if at all longer ; chelce a 

 little longer, hand thicker, and fingers lobate ; underhand a little 

 longer than carapace and longer than movable finger, which is 

 about equal to carapace. 



Measurements in mm. . Total length 51 , carapace 7'5, tail 

 25, underhand 7'5, movable finger 8, width of hand 4. 



c?. Total length 47, carapace 7'5, tail 26-5, underhand 8-2, 

 movable finger 7-6, width of hand 4'8. 



Loc. Assam. Sylhet ; Dhubri (Smart) ; North Cacbar Hills ; 

 Sadiya ; Naga Hills. 



This species was based upon a single female example from Sylhet. 

 The measurements given above are taken from an adult male and 

 female of the same species from Dhubri. These specimens are 

 smaller than the type and than most of the adult examples that 

 have come to hand. 



58. Scorpiops asthenurus, S p. n. 



cf . Belonging to the same category of species as S. longimanus, 

 which it resembles in colour, sculpturing, &c. The tail, however, 

 is shorter and weaker, being only about twice as long as the cara- 

 pace, which is almost as long as its first three segments or as the 

 4th and 5th ; dorsal keels of the 3rd and 4th weakly spiniform, 

 but not elevated, being lightly depressed at the posterior end ; 1st 

 segment only as wide as the brachium ; a distinct annuliform 

 sulcus at base of aculeus. Chelce as in S. longimanus; brachial pores 

 9 ; hand much wider than in S. longimanus, its inner edge more 

 strongly convex, its width more than half the length of the under- 

 hand ; area between the keels of its dorsal surface less than half 

 the length of the movable finger, which is not quite equal to the 

 underhand or to the carapace ; outer edge of finger not evenly 

 curved, but showing a slight bend just on a level with the lobe; 



