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Show 854 MR. R. I. P O C O C K O N SOORPIONS, PEDIPALPS, [Nov. 14, In one the upperside of the abdomen is entirely black ; in a second it is also black with a bright yellow transverse stripe crossing it from shoulder to shoulder ; in the third, which seems to be less prevalent than the others, the whole of the upperside behind the anterior shoulders is yellow. CYRTOPHORA LARINIOIDES Simon. Cyrtophora larinioides, Simon, Ann. Soc. Ent. France, 1894, p. 155. Loc. Benito Biver (67. L. Bates). Described from Ogowe. CYRTOPHORA MARGARITATA, sp. n. (Plate LV. figs. 4, 4 a.) Colour almost as in C. unicolor Dol., a tolerably uniform yellowish brown; the abdomen darker thau the carapace and limbs, legs indistinctly variegated, sternum and lower side of abdomen blackish. Carapace smooth as in C. citricola; eyes as in the latter species, but the laterals closer together. Legs as in G. citricola, but with tarsi and protarsi shorter ; tarsus and protarsus of 1st, for example, being distinctly shorter than patella and tibia of 1st. Abdomen truncate in front, narrowly ovate behind, not lobate laterally, and only weakly bilobate posteriorly, as in C. angolensis ; studded above with larger and smaller smooth circular bosses, very like those of C. unicolor, but much larger and less numerous. Vulva as in figure (Pl. L V . fig. 4 a). Measurements in millimetres of type.-Total length 14; length of carapace 6*5, of abdomen 9, width of abdomen 7*5; length of 1st leg 19, its patella and tibia 7, protarsus and tarsus 6. Loc. Benito Biver (67. L. Bates). At once recognizable from G. unicolor by the strong curvature of the posterior line of eyes, narrow interval between the lateral eyes, absence of tubercles on the carapace, large size of tubercles on the abdomen, &c. From the rest of the W.-African species known to me it may be at once recognized by the features mentioned in the subjoined table. The four W.-African species of Cyrtophora known to m e may be distinguished as follows :- a. Abdomen long and narrow, produced iu front into a longish process overhanging the base of the carapace larinioides Sim. b. Abdomen truncate in front, broadest at its anterior end. a1. Abdomen without distinct shoulder prominences and no lateral prominences; its upperside studded with large circular tubercles maryaritata, sp. n. J1. Abdomen with distinct shoulder prominences and one or more prominences on each side ; upper-side studded with smaller tubercles. a2. Abdomen with one prominence on each side behind the shoulder, posteriorly deeply bifid |
