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



form of the same species and may provisionally, at all events, 

 rank as a subspecies. 



Uroplectes occidentalism Simon. 



TJroiilectes occidentaUs, Simon, Bull. Soc. Zool. France, 1876, p. 219. 

 Tityns chinchoxensis, Karscb, Zeits. Naturw. lii. p. 370 (1879). 



The British Museum has examples of this species from the 

 Congo (whence the type was obtained), Angola, and Cette 

 Cama (Gaboon) ; but, according to Kraepelin, it spreads as 

 far to the north as Sierra Leone and eastwards and southwards 

 into Somaliland, Masailand, and Natal. If these localities 

 are trustworthy, the species has a wider range in Africa than 

 any indigenous scorpion with which I am acquainted. 

 Furthermore, this author also affirms that he has examined 

 specimens from Sumatra, Java, Borneo, and Celebes. 



As stated above, this species, of which I have published a 

 coloured tigure in the Proc. Zool. Soc. 1890, pi. xiv. fig. 4, 

 is the type of Kraepelin's genus Tityolepreus ; but I feel 

 satisfied of the impossibility of separating it generically from 

 such forms as vittatus and Fischeri. 



Synopsis of the South- African Species contained in the 

 Collection of the British Museum. 



1. Abdominal terga with a lateral abbreviated keel 



on each side as well as the median ; teeth of the 

 inner set close to and not behind the apices of 

 the adjacent median rows ; crests on the lower 

 surface of the tail well developed. 



a. Vesicle of tail without a distinct tooth beneath 



the aculeus ; a larf^e number of pectinal teeth 

 (up to 30) : female with the basal pectinal 

 tooth long and falciform (? in carinatus). 

 a\ The crests of the tail weakly granular, the 



inferior ones on at least the first and second 



segments smooth ; median lateral keel weak 



on the third segment, absent on the fourth ; 



hand, especially in the male, broad, flat, 



with compressed inner edge planimanus 



b^. The crests on the tail, including the lower [(Karsch). 



ones on the first and second segments, 



strongly granular ; the median lateral crest 



strong on the third segment and distinct on 



the fourth ; hand in the male normally 



rounded carinatus (Poc). 



b. A distinct triangular tooth beneath the aculeus ; 



pectines with 15 teeth in $ , basal tooth ex- 

 panded but not elongate; tail crested and 

 granular as in carinatus variecjatus (Koch). 



2. Abdominal terga without lateral crests ; tail 



coarsely punctured below, almost entirely 



