1899.] AND SPIDBES FROM TROPICAL WEST AFRICA. 853 



diameter apart, anterior mediaus a little more than a diameter 

 apart, distance between anterior and posterior medians less than 

 a diameter ; anterior line of eyes straight or nearly so ; anterior 

 mediaus less than their diameter from the edge of the clypeus. 



Legs longish, scantily spined, but furnished with long close-set 

 bristles ; the spines setiform ; 1st leg much longer than 4th. 



Abdomen flat above, heart-shaped, with rounded an tero- lateral 

 angles and anterior border, the posterior apex prolonged into a 

 longish, stout " tail," which about equals the carapace in length ; 

 spinners in the middle of the heart-shaped basal portion of the 

 abdomen. 



Vxdva with its basal vestibular portion not expanded, either 

 laterally or posteriorly, at the base of the scape, which is loug, 

 slender, and slightly curled at the tip. 



Measurements in millimetres. — Total length 9 ; length of carapace 

 2'5, of abdomen 6*5, of abdomen without tail 4, width of abdomen 

 3-5 ; length of 1st leg 12, of 4th S. 



Loc. Benito Eiver {G. L. Bates). A single adult female. 



This differs from all the Tropical African species of Araneus known 

 to me in having the ocular quadrangle approximately square, with 

 the four eyes subequal, and the extremity of the abdomen produced 

 into a longish caudal process. In both of these features it 

 resembles the Burmese species A. thelurus (Thor.), but may be at 

 once separated from it at least by the much greater length of the 

 scape of the vulva. 



Genus Ctetophora Sim. 



Cyetophora citeicola (Forsk.). 

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

 Widely distributed throughout Tropical Africa and Asia. 



Cyrtophora angolensis (Brit. Capello). 



Epeira angolensis, Brit. Capello, J. Ac. Sci. Lisboa, i. p. 79, pi. ii. 

 fig. 4 (1868). 



Epeira cTiinchoxensis, Karsch, Zeits. gesammt. Naturwiss. lii. 

 p. 333 (1879). 



Loc. Sierra Leone {Surg.-Capt. Clements) ; Benito Eiver 

 {G. L. Bates). 



Eecorded by Brito Capello from the Eio Quilo. Karsch's speci- 

 mens from Chinchoxo appear to me to be specifically identical with 

 those that Capello described. 



M. Simon (Hist. Nat. Araignees, i. p. 775, 1895) adds this 

 species to the synonymy of C. citricola. But this is undoubtedly 

 an error, 0. angolensis, according to my determination, being dis- 

 tinguishable by the posteriorly pointed abdomen and wide head, 

 with the lateral eyes far apart from the medians. The vulva is 

 furnished with a distinct process. 



Three well-marked colour- varieties of this species are met with. 



