Mr. R. I. Pocock on East- African Scorpions, 433 



Sterna smooth and polished, the last coarsely punctured on 

 each side of the middle line. 



Tail about 3^ times the length of the carapace, narrowed 

 posteriorly, somewhat compressed, the upper surface smooth, 

 its side-keels liigh and strongly denticulated on the second, 

 third, and fourth ; lateral surface of segments granular ; 

 inferior keels on first and second smooth, punctured, on third 

 weakly granular, on fourth and fifth almost denticulate ; 

 supero-lateral keel coarsely granular on all the segments. 

 Vesicle large, granular below, its width equal to the width of 

 the third segment, its height equal to the width of the fifth 

 segment ; aculeus stout, strongly curved. 



Mandibles with the penultimate tooth of the movable fang 

 enlarged and nearly as prominent as the apical. 



Chelce of normal length ; humerus tubercular or denticulate 

 above and in front, smooth behind and below ; brachium 

 weakly granular and subcostate behind and above, armed 

 with a few granules below in front, smooth below and 

 coarsely punctured behind ; hand thick and large, with the 

 lobe strongly produced internally ; very convex above, not 

 keeled, furnished externally and at the base of the fingers 

 with smooth, rounded, irregular-shaped low tubercles, which 

 towards the inner edge of the hand posteriorly fuse into a 

 reticulated pattern and entirely disappear upon the posterior 

 part of the lobe, which, as a consequence, is quite smooth ; 

 the distal half of the inner surface of the hand denticulate; 

 hand-back smooth, punctured ; lower surface not crested or 

 keeled, coarsely granular in its distal half. 



Legs of first and second pairs with proximal and distal 

 tibial segments, each armed behind with two spicules ; femora 

 of fourth very feebly granular ; tarsus of fourth with its 

 lower surface armed behind with 8 spines, 2 of which are on 

 the lobe, 1 on its inferior angle and 1 halfway up, with a 

 bristle between them, the angle of the lobe being tipped with 

 bristles ; the distal spine on the lower edge of the foot is 

 close to the lower one on the lobe ; the spine-armature on the 

 front (or outside) of the tarsus is the same, except that there 

 are only 3 or 4 spines on the lower edge. The tarsi of the 

 other feet present much the same armature. 



Pectines with 17 teeth. 



Measurements in millimetres. — Total length 117; length 

 of tail 58, of carapace 16"2 ; distance of eyes from hinder 

 edge 6*2; length of hand-back 10'8, of movable digit 16; 

 width of hand 15 3, height of hand 7'5. 



Loc. Kinani, a single female (type) ; Tangaiiyko (con- 

 fluence of the Athi), a single female; Tzavo, one male ob- 



