On a new Genus and Species of Solifugse. 367 



XL. — On a new Genus and Species of the Order Solifugae 

 from Algeria. By S. HlRST. 



(Published by permission of the Trustees of the British Museum.) 



Barrella, gen. nov. 



Anterior margin of head-plate only slightly curved and 

 furnished on either side of the ocular tubercle with a series of 

 five strong spines, which are placed on a slight eminence. 

 Ocular tubercle only slightly prominent in front and furnished 

 with a number of strong anterior spines and a few bristles 

 also. Inner surface of chelicera smooth and devoid of stridu- 

 latory ridges ; in the male a membranous plate and a rather 

 narrow membranous flagellum are present, and the dorsal 

 surface of the immovable finger has a forwardly-directed 

 process. Tibia of maxillipalp in the male with a swelling 

 on the inner side, which is armed with spines and strong 

 spiniform bristles. Tarsi of the legs each with a single 

 segment. 



Barrella walsi?ighami, sp. n. 



<^ . — Read-plate convex and a little wider than long, the 

 anterior margin almost straight, and furnished on either side 

 of the ocular tubercle with an obliqueseries of five strong diver- 

 gent spines, which are of equal length and are situated on a 



Fig. 1. Ka:. 2. 



Barrella ivalsinghcnni, sp. n. 



Fig. 1. — Anterior end of head-plate of male from above. 

 Fig. 2. — Chelicera of male from inner side. (The hairs on the wing- 

 shaped plate are not shown.) 



slight common elevation. Ocular tubercle of fairly large size 

 and projecting well in front of the anterior margin of the 

 head-plate ; its anterior surface is only very slightly promi- 

 nent, and bears seven strong spines and two or three fine 

 bristles as well (fig. 1). 



