1899.] AND SPIDBB8 FROM TROPICAL WEST APRICA. 855 



eyes of posterior line strongly recurved ; vulva 



without scape citricola Forsk. 



b-. Abdomen with two prominences on each side 

 behind the shoulder prominence, apex of 

 abdomen not bifid ; posterior line of eyes 

 much less strongly recurved ; vulva with 

 distinct scape angolensis B. Cap, 



G-enus Aegyeobpeiba Eraerton. 

 Abgyroepeira ungulata (Karsch). 



Meta ungulaia, Karsch, Zeits. ges. Naturwiss. lii. p. 834 (1879). 

 Loc. Benito Eiver (G. L. Bates). 



This species, recorded from the Loaugo coast, also occurs on the 

 eastern side of the African continent. 



G-enus Cyolosa Menge. 

 Cyolosa iNSULANA (Oosta). 

 Loc. Cameroon Mountains, 4000 ft. (ff. H. Johnston). 



Genus Acusilas Sim. 



? Acusilas afeioanus Sim. 



'^Acusilas africanus, Sim. Hist. Nat. Araiguees, i. p. 785 (1895). 



Loc. Benito River (G. L. Bates). 



The description of A. africanus is too brief to make sure of the 

 correctness of the identification of the immature female of a 

 species of this genus which Mr. Bates procured. M. Simon's 

 example was obtained at Sierra Leone. 



? G-enus Salassina Sim. 



Salassina FORMOSA (Karsch). 



Cyclosa formosa, Karsch, Zeits. ges. JNTaturwiss. hi. p. 835 (1879). 



Loc. Cameroon Mountains, 4000 ft. {H. H. Johnston). 



Recorded by Karsch from the Loango coast. 



According to M. Simon's division of the Cyclosese, this species, 

 if rightly determined, as I think is the case, falls apparently 

 nearest to the genus Salassina, having the head short, the median 

 eyes of large size and the quadrangle they form slightly narrowed 

 in front. The tibiae of the legs, however, are not noticeably 

 incrassate, and there are no angular prominences on the fore 

 part of the abdomen. The lesser recurvature of the eyes and the 

 absence of a median series of spines fi'om the lower side of the 

 protarsus of the 4th leg seem to exclude the species from the 

 allied genus Acusilas. 



Genus C^rostris Thorell. 



C^ROSTRis ARGOSTiCTUS, sp. n. (Plate LV. figs. Q-b h.) 



Colour. Carapace with thoracic portion reddish above, with a 

 silvery white patch at the sides ; cephalic portion blackish, with an 



