214 Mr. R. I. Pocock on 



XXIV. — Sov^e Arachnida collected hy Mr. O. W. Bary in 

 Yemen. By R. I. PocoCK. 



Me. G. W. Buey, who made a collecting-expedition, 

 organized bj Mr. W. R. Ogilvie-Grant and the Hon. Walter 

 Rotliscliild, into the Amiri District of the Upper Haushabi, 

 S. Arabia, at an altitude of about 5000 feet, sent home 

 lecentlj a small instalment of Arachnida, which contained so 

 many new and interesting forms that I have considered it 

 worthy of special notice. He is paiticularly to be congratu- 

 lated upon the capture of specimens of five new species of 

 Solit'uga?, and upon the rediscover}' of the genus Monccen- 

 tropus, hitherto known only from Sokotra. 



Order SCORPIONES. 

 Genus NebOj Sim. 

 Neho hierichonticus (Sim.). 

 Hemiscorpio Meric7iontic2is, Sim. Ann. Soc. Ent. Fr. 1872, p. 255. 



Subsp. pallidimanus, nov. 



Legs and chelicerte a pale lemon-yellow; chelae the same 

 colour, except for the fingers and the keels on the hand ai,d 

 other segments, which are deep blackish brown. 



Loc. El Kubar and Gerba. 



The typical form of this species from the Jordan Valley is 

 described by Simon as shining black, with reddish-brown 

 legs. This description nearly fits the S. -Arabian form to 

 which Simon gave the name jlavipes (Ann. Mus. Genov. 

 xviii. p. 249, 1883). Of this, the British Museum has 

 many examples from Aden and its neighbourhood, collected 

 by Col. Yerbury and the Marquis G. Doria,and irom Muscat, 

 collected by Dr. A. J. Jayakar and Mr. F. W. Townsend. 

 Amongst these are co-typical examples of jlavipes^ received 

 from the Genoa Museum. They differ from pallidinianus in 

 having the trunk darker, the chelaj very dark brown, scarcely 

 paler than the truukj and the legs deep ruddy brown. 



Genus Heteeometeus, Hemp. & Ehrb. 



Heterometrus fuscuS) Hemp. & Ehrb. 



Heterometrus fuscus, Pocock, Aun. & Mag. Nat. Hist. (j)\\. p. 363 

 (1900). 



Loc. Dthala. A single example of the Syrian species was 

 collected. 



