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Show 1899.] AND SPIDERS FROM TROPICAL WEST AFRICA. 855 eyes of posterior line strongly recurved; vulva without scape citricola Forsk. b2. 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 anyolensis B. Cap. Genus ARGYROEPEIRA Emerton. ARGYROEPEIRA UNGULATA (Karsch). Meta ungulata, Karsch, Zeits. ges. Naturwiss. Iii. p. 834 (1879). Loc. Benito Biver (67. L. Bates). This species, recorded from the Loango coast, also occurs on the eastern side of the African continent. Genus CYCLOSA Menge. CYCLOSA INSULANA (Costa). Loc. Cameroon Mountains, 4000 ft. (H. H. Johnston). Genus ACUSILAS Sim. ? ACUSILAS AFRICANUS Sim. '?Acusilas africanus, Sim. Hist. Nat. Araiguees, i. p. 785 (1895). Loc. Benito Biver (67. 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. ? Genus SALASSINA Sim. SALASSINA FORMOSA (Karsch). Cyclosa formosa, Karsch, Zeits. ges. Naturwiss. Iii. p. 835 (1879). Loc. Cameroon Mountains, 4000 ft. (H. H. Johnston). Becorded by Karsch from the Loango coast. According to M . Simon's division of the Cyclosea?, 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 iu 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 from the lower side of the protarsus of the 4th leg seem to exclude the species from the allied genus Acusilas. Genus CCEROSTRIS Thorell. C.EROSTRIS ARGOSTICTUS, sp. n. (Plate LV. figs. 5-5 6.) Colour. Carapace with thoracic portion reddish above, with a silvery white patch at the sides ; cephalic portion blackish, with an |
