OCR Text |
Show 766 MR. R. I. POCOCK ON ETHIOPIAN SPIDERS. [Jun3 15, tarsus of the 1st, whereas in H. gigas the length of the carapace slightly exceeds btth these measurements. The foregoing species may be recognized as follows :- Males. a. Patella aud tibia of 4th leg longer than the same segments of the 1st leg: femur of 4th considerably longer than the width of the carapace crasslpes. b. Patella and tibia of 4th leg a little shorter than those of the 1st leg; width of carapace about equal to the length of tho 4th femur. a'. Carapace and head wider ; width of carapace equal to the length from the tubercle to tbe posterior border ; width across head from cephalic grooves equal to distance between fovea and median eyes laticeps. b'. Carapace and head narrower, width of former less than distance between posterior border and tubercle; and of head equal to distance between tubercle and fovea giga$- Females. a. Posterior legs thicker, the tibia as wide as the patella or the distal end of the femur, its width very much exceeding a third of its length ; tarsus of palp a little inflated above at the base... crasslpes. b. Posterior legs thinner, the tibia thinner than the distal end of the femur, its width equalling about one-third of its length ; tarsus of palp not noticeably tumid above at the base. a'. Carapace very long, the area between the tubercle and the posterior median einargination noticeably exceeding the width, its total length about equal to that of the tibia and protarsus of the 1st leg gigaF-b'. Carapace shorter, distance between tubercle and emarginatiou not exceeding its width, its total length less than the length of the tibia and protarsus of the 1st leg laticeps. Genus EUMENOPHORUS, nov. 2 . Allied to Selenogyrus (cf. Infra), with the procurved fovea, and the legs long and slender, the 4th being longer than the 1st, though their patellae aud protarsi are equal ; so, too, are the tarsal scopulae entire on the 1st, 2nd, and 3rd pair of legs, and divided on the 4th. The following characters, however, point to generic differences between the two :- (1) The legs are without spines, wdth the exception of a few at the apex of the protarsi. (2) The posterior sternal sigilla are situated some distance from the margin of the plate as in Selenocosrnla, the pair in front of them being also visibly away from the edge, the sternum itself being as broad as long. Labium nearly as long as broad, its edge, like the inner angles of the maxillae, densely granulate. (3) The claws of the legs are smooth and unarmed. EUMENOPHORUS CLEMENTSII, sp. n. Colour a uniform mouse-brown. Carapace flattish, broad, the width equalling the distance between |