94 Mr. E. I. Pocock on 



leg 74, third leg 73, fourth leg 92 ; patella + tibia of first 28-5, 

 of fourth 28; protarsus of first 16, of fourth 27. 



Besides the type the British Museum has two additional 

 females of X. immanis \ these resemble the type in relative 

 measurements. 



Genus Cyrtopholis, Sim. 



Cyrtosternum, Auss. Verh. z.-b. Wien, 1875, p. 176 (uom. prneocc.) 



(type cursor, Auss.). 

 Cyrtopholis, Simou, Ilist. Nat. Araign. i. p. 143 (1892) (type innocuus 



(Auss.), Sim.). 

 Lyroscelus, F. Cambr. Ann. k Mag. Nat. Ilist. (7) vii. p. 324 (1901) 



(type i?o?;^oto', F. Cambr.). 



Simon proposed CyrtoplioUs to replace Cyrtosteryium. He 

 drew the characters of the genus from an unnamed species 

 from St. Thomas and from specimens he identified with 

 Crypsidromiis innocuus, Auss., a Cuban species. The type 

 oiCi/7'topholis, then, is the species represented by the specimens 

 leferred by Simon to innocuus. 



The type of Cyrtosternum^ namely, cursor, from San Do- 

 mingo, was unknown to Simon. As has already been pointed 

 out by myself (Ann. & Mag. Nat. Hist. (6) xvi. p. 226, 1895) 

 and Mr. F. (Jambridge (Biol. Centr.-Amer., Araneidea, vol. ii. 

 p. 29, 1897), Ausserer based the genus upon the strong con- 

 vexity of the sternum, not, as Simon states, upon the curvature 

 of the anteiior ocular line. The types of C. cursor are in the 

 British Museum and are doubtfully adult females. x'Vpart 

 from the convexity of the sternum, I can find no character 

 with pretensions to be of generic value between this species 

 and the others here referred to CyrtoplioUs. But to regard 

 this as of generic value complicates the question of names, 

 for it entails the ascription of a new generic name to replace 

 Cyrtosternum, since the species from which the characters of 

 Cyrtopholis were taken have the sterna flat. That this species 

 is congeneric with the type of Lyroscelus, F. Cambr., with 

 which the other Antillean species known to me agree, is very 

 probable. I have acted upon this probability in the generic 

 synonymy given above; but should this supposition prove 

 erroneous the matter may be easily rectified, since the type 

 species to which the three generic names have been given 

 are settled. 



Cyrtopholis cursor (Auss.). 

 Cyrtosternum cursor, Auss. Verh. z.-b. Wien, 1875, p. 170. 



Loc. San Domingo. 



The only specimens of tliis species available for exaniination 



