386 Mr. R. I. Pocock on South- African Scorpions. 



vesicle ; vesicle coarsely granular below, a small denticle some 

 distance below the root of the aculeus, its upper surface 

 depressed at the base, strongly convex on its distal half, the 

 curvature of which is continuous with that of the vesicle. 



Chela long and slender ; humerus and brachium finely and 

 closely granular above, more coarsely granular in front ; 

 manus slender, about as wide as the brachium, smooth, but 

 punctured and hairy ; a distinct tubercle on its inner surface 

 at the base of the digits ; width of hand a little more than 

 half the length of the hand-back ; hand-back less than half 

 the length of the movable digit ; digits long, rather strongly 

 curved at the end ; 1 1 rows of teeth along the median 

 series, the basal row long, with an enlarged denticle on each 

 side of it near the middle of its length ; the teeth of the inner 

 series lying close up to and a little behind the apical tooth of 

 the median rows, which is scarcely larger than the rest and 

 not separated from them by a larger space than that which 

 separates the rest of the teeth of the median rows from each 

 other. 



Legs weakly granular externally. 



Pectines long, with 23-24 teeth. 



Measurements in millimetres. — Total length 60; length of 

 tail 38, of carapace 5*7 ; width of hand 1*5 ; length of hand- 

 back 3, of movable digit 6"5. 



Loc. Murchison Range, Transvaal (C. R. Jones). 



Belonging to the same category as U. chlorodermus and 

 U. triangulifer, but recognizable from both in the characters 

 pointed out in the synopsis. 



Urcplectes vittatus (Thor.). 

 Lepreus vittatus, Thorell, Act. Soc. Ital. Sci. Nat. xix. p. 121. 



A single female example of this species recently received 

 from the Murchison Range, Transvaal ( G. R. Jones) , presents 

 the following type of coloration : — 



Carapace ornamented in front with a triangular black patch 

 lying between the eyes ; the posterior apex of this patch ex- 

 tends beyond the ocular tubercle halfway towards the posterior 

 margin, the posterior edge with two transverse black lines 

 and the lateral edge black nearly up to the lateral eyes. The 

 anterior four terga with black or partly black edges, all of 

 them except the last, which is almost of a uniform yellow, 

 furnished with two large conspicuous black spots, which con- 

 stitute together a double dorsal band, but each of these black 

 spots is distinctly divided by a > -shaped yellow mark ; the 

 yellow bands which lie between the black bands are subequal 



