new Species of Scorpions. 413 



however, by having the external surface of the femora of the 

 anal legs granular, only six or seven pectinal teeth, and tiie 

 high vesicle. 



Measurements in millimetres. — Total length 71; length of 

 carapace 11, of tail 33 ; height of the vesicle 3-3; width of 

 first caudal segment 2' 5 ; lengtii of hand- back 9, of movable 

 digit 10 ; width of hand 7 "8. 



Loc. Basutoland {R. C. Wroughton). 



Under (). validus I formerly (Aim. & Mag. Nat. Hist. (6) 

 xii. p. 318) included more than one species. 0. asiaticus, 

 Keys., for example, which occurs at Port Elizabeth, is distinct 

 from the Natal species which I now think is vah'dus, 

 Thorell; 0. capensis, Thor., is also probably distinct, though 

 unknown to me. 



Genus Cheloctonus, Poc. 

 Cheloctonus anthracinus, sp. n. 



Allied to C. crassimanusy Poc, but black all over, except 

 the vesicle, wiiich is ferruginous. The upperside cf the 

 brachium and hand much more coarsely sculptured, orna- 

 mented with thick smooth ridges and scarcely visibly punc- 

 tured. In crassimanus the integument of the hand and 

 brachium is densely punctured, the sculpturing forms a much 

 closer and finer reticulation of ridges, and the inner portion 

 of the upper surface of tlie liand is distinctly granular. 



Measurements in millimetres. — Total length 54; length of 

 carapace 7*2, of tail 26, of hand-back 5 5, of movable 

 digit 7"2 ; width of hand 7. 



Loc. Griqualand West {J.ff. Darling). 



Genus Hemiscorpius, Pet.* 



Hemiscorpius arabicus, sp. n. 



Hemiscorpius lepturus, Pet., Pocock, Jonrn. Linn. Soc, Zool. xxv. 

 (1896) p. 316 (not lepturus, Pet.). 



Colour. Dull olive-yellow on the trunk ; vesicle clear 



yellow; legs testaceous ; chelee reddish yellow ; digits black, 

 with pale tips. 



Carapace longer than tiie first and second and than tiie 



* Mon. Ak. Wiss. Eerlin, April 1S61, \). 4:^6. Peters subsequeutly cited 

 this genus as Ilemiscorpion {op. cit. p. ."31 1, May 1861). He described it 

 originally, however, as Hemiscorpius, although in the editorial intro- 

 duction to his paper, for which the editor and not Peters must be lield 

 responsible, it appears as Hemiscorpivn, It is curious that Kraepelin, in 

 his ' Revision,' does not cite the original reference to the genus nor 

 Peters"s admirable figure of the species, 



