Mr. R. I. Pocock on South- African Scorpions. 381 



humerus, brachium, and manus variegated with black, the 

 last two especially so posteriorly, digits pale. Legs with 

 femora and patella variegated with fuscous ; lower surface of 

 the trunk quite pale, the last sternite only being obscurely 

 lined with black. 



Carapace coarsely granular but not carinate, the ocular 

 tubercle granular. Terga coarsely granular, each of the 

 first six marked with three granular keels, the lateral keels on 

 the anterior segments only represented by a single tubercle, 

 the keels on the seventh tergite strong and denticulate. 

 Three anterior sternites smooth but punctured, the fourth 

 slightly granular in the middle, more thickly at the sides, the 

 fifth closely granular throughout, the normal keels only 

 marked by a few larger granules. 



Tail slender, a little narrowed posteriorly, about A\ times 

 the length of the carapace ; its intercarinal spaces finely 

 granular ; the keels well developed and granular or denticu- 

 late, the first three segments with 10 keels, with a trace of 

 the median lateral on the fourth ; the superior keels denticu- 

 late, the terminal denticle being larger; the superior borders 

 of the fifth not carinate, the inferior strongly denticulate; the 

 vesicle granular, with a distinct triangular tooth beneath the 

 aculeus, the whole tail beset with strong setae. 



Palpi granular, humerus carinate, brachium not carinate, 

 manus not carinate and not granular, hairy, rounded, about as 

 wide as the brachium ; the digits in contact, the movable 

 about twice the length of the hand-back and furnished with 

 8 rows of teeth along the middle line ; the basal row long ; 

 teeth of the inner series a little behind the apices of the corre- 

 sponding median rows. 



Legs granular ; the feet not thickly hairy beneath. 

 Pectines short, furnished with 15 teeth, of which the basal 

 is enormously enlarged but not elongate. 



Total length 28 miilim., of tail 16 - 5, of carapace 2*8. 

 hoc. Cape Town (H. A. Spencer and G. H. R. Fisk) and 

 Simon's Town (Be la Garde). 



A single female example taken by each of the above 

 collectors. 



This species resembles pilosus, Thorell, planimanus, Karscli, 

 lunulifer, Simon, and carinatus, Pocock, in possessing three 

 keels upon the tergites ; in these other species, however, the 

 pectinal teeth are over 20 in number, varying from 23 to 31, 

 and there is no tooth beneath the vesicle on the tail. 



I have published a full description of this species, because, 

 so far as I am aware, no examples of it have been examined or 

 described since 1845, when C. Koch first established it ; and 



