430 Mr. R. I. Pocock on East- African Scorpions. 



the basal segments of the tail being an exceedingly deep red- 

 brown, while the trunk is nearly black above. In addition 

 to this the granulation is everywhere coarser, and the keels on 

 the tergites, tail, and chela? much stronger, the finger-keel on 

 the hand standing up as a very conspicuous crest. Total 

 length 62 millim., of carapace 7, of tail 37. Tail moderately 

 robust, slightly attenuate posteriorly. 



Two female examples from Rio del Rey (II. H. Johnston). 



The British Museum also has an example of a Baby curus, 

 resembling, though not quite identical with, the Cette Cama 

 form, from the mouth of the Loango, north of the Congo 

 (H. L. Duggari). 



Synopsis of the Species contained in the British Mxiseum*. 



a. The brachium of the chela strongly infuscate, con- 



trasting forcibly with the paler red or yellow 

 colour of the nianus ; the finger-keel on the 

 hand visible in the $ (though sometimes ab- 

 sent in the J, as, for instance, in the type of 

 B. Kirkii) ; median eyes very large ; an enlarged 

 tooth on the middle of the inner side of the long 

 basal series of the middle row on the digit. 

 a 1 . Colour of trunk a uniform deep brownish black; 



brachium the same deep colour as the terga ; 



hands, humerus, and legs a uniform deep red ; 



keel on the hand strong and finely granular ; 



granulation and keeling of the trunk, limbs, 



and tail coarser Johnstonii, sp. n. 



b 1 . Colour of trunk paler, variegated ; terga 



blackish at the sides and along the median 



keel, pale yellowish red elsewhere ; brachium 



(and sometimes humerus also) infuscate ; legs 



yellow, variegated with blackish spots ; lower 



surface and hand pale yellow; granulation 



and keels finer B'dttneri, Karsch. 



b. Chelae (with the exception of the black digits) of 



a uniform yellow colour; hand without a finger- 

 keel ; median eyes smaller ; no large tooth in 

 the middle of the inner side of the long basal 

 series of the median row on the digit. 

 a a . Eight median rows of teeth on movable digit ; 



the sides and lower surface of the tail thickly 



and somewhat coarsely granular ; all the 



normal keels well denned and coarsely granu- 

 lar ; upper surface of tail also granular, but 



more finely ; last abdominal sternite finely 



granular and marked with four abbreviated 



crests ; coloration uniform JacJcsoni, Poc, $ . 



* I have failed to unravel to my satisfaction the specific characters of 

 the remaining species of the genus as set forth by Prof. K. Kraepelin. 



