218 Mr. S. Ilii.st on Scorpions and Sulifugcn 



a vaiiety of the latter. I think J;hat it is utidoubtedly more 

 closely allied to B. emini tiian \.o B.minax^hni that it should 

 be regarded as a distinct species and not merely as a variety. 

 The male can be readily distinguished from that o£ B. emini 

 by its much narrower hand, which is only slightly broader 

 than the brachium, and longer and more slender fingers ; 

 moreover, the movable finger has only a very slight low 

 lobation, and the immovable finger is without any definite 

 lobe. Tiie hand and fingers, indeed, are very similar in 

 shape in both sexes in B. polystictus and resemble closely 

 those of the female of B. emini. In the male of B. emini, 

 however, the hand is very much broader than the brachium, 

 and the fingers are very different in shape to those of the 

 female ; they are shorter and stouter, and both the movable 

 one and the immovable one in the adult are furnished 

 with very distinct lobes, that of the immovable finger being 

 especially strong. In addition to the specimens of iy.jyo/y- 

 stictus determined by Mr. Pocock, I have examined sixteen 

 males and forty-three females and young from Berbera, and 

 eleven males and twenty-lwo females from the Wagar 

 Mountains behind Berbera; these specimens were collected 

 by Mr. G. W. Bury.] 



Buthus quinquestriotus, H. & E. 



Loc. Oaptain Flower collected examples of this well- 

 known species at VVady Haifa, Khartoum, and the Blue 



Nile. 



[A specimen of the following species from the Sudan has 

 been acquired by the Trustees of the British Museum.] 



Parahuthus liosoma hunteri, Poc. 

 Paruhuthus hunteri, Poc. J. Linn. Soc, Zool. xxv. p. 309 (1895). 



Additional Loc. Omdurman, Sudan. A large male 

 example collected by Capt. H. N. Dunn, R.A.M.C. 



Measure-merits of this specimen in mm. — Total length 99 ; 

 length of carapace ll'b, of fifth caudal segment 12'5; widtli 

 of fifth caudal segment 7*25. 



Remarks. — This scorpion was described from specimens 

 obtained at Duroor and Suakin. As pointed out by 

 Mr. Pocock, it can be distinguished from Parahuthus liosoma 

 [typical form] by the greater slenderness of the tail and by 

 tlie presence ot a basal tubercle on the fingers of the hand, 

 &c. It must be noted, however, that the width of the tail 

 varies somewhat even in specimens from the same locality. 



