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Show 1899.] AND SPIDERS FROM TROPICAL WEST AFRICA. 843 Sibange Farm, Gaboon, with which it may prove to be identical. Karsch, however, says nothing about the colouring of P. biittneri, nor about the spine armature of the legs. From P. (Harpaxotheria) antilope Simon (Act. Soc. L. Bordeaux, xiii. p. 414, 1889), from Tomby in the Congo, P. occidentalis also differs, judging by the leg-measurements that Simon gives. For example, the 4th leg in the type of P. antilope exceeds the 1st by about 10 m m . (63*2: 53*5), that is to say, by considerably more than the length of the tarsus of either limb, whereas in P. occidentalis the differeuce does not amount to more than half the tarsus. PHONEYUSA BIDENTATA, sp. n. (Plate LVI. fig. 11.) o*. Colour : a uniform dull greyish-brown clothing of hairs on the trunk and limbs, tbe long bristles on the legs and abdomen reddish grey, the integument beueath the hairs nearly black; a narrow fringe of pale pinkish hairs at the distal end of the femora, patellae, tibia?, and protarsi. Carapace longer than wide, its length slightly exceeding that of patella, tibia, and tarsus of palp, equal to protarsus and femur of 4th leg, considerably less than patella and tibia of 4th leg, a little greater than patella and tibia of 3rd leg, its width just about equal to femur of 2nd. Legs long and slender (those of 1st pair absent), with two or three spines at the apex of tibia? beneath, about 4 on apex of 2nd protarsus, and a row of about 8 on apex of 3rd and 4th protarsi; 4th leg exceeding the 2nd by about two thirds of its protarsus, patella and tibia of 2nd about equal to those of 4th, the tarsi about equal; tarsus of 4tb, including claw, about equal to patella of 4th ; bristles upon legs aud abdomen hooked at their distal ends. Tibia of palp about three times as long as broad ; bulb of palpal organ subcircular and furnished with two spines, the principal spine rather short, stout, not filiform, furnished externally with two keels which pass on to the bulb, the smaller spine in front of the larger, much smaller than it and curved in the opposite direction. Measurements in millimetres.-Total length 41; length of carapace 23, width 20*5 ; length of palp 35, of 2nd leg 74, of 3rd 65, of 4th 80, patella and tibia of 4th 27 ; protarsus of 4th 23*5, tibia of 4th 18, tarsus 9. Loc. Benito Biver (G. L. Bates). This species differs from all the known species of Phoneyusa that are based upon male examples in the possession of a second spiniform process on the bulb of the palpal organ. These species are P. (Harpaxotheria) gracilipes Simon, from the Congo, and P. (Harpaxotheria) ectypa Simon, from Abyssinia (Act. Soc. L. Bordeaux, xiii. pp. 414-415); P. gregorii Pocock (Proc. Zool. Soc 1897, p. 760, pl. 43. fig. 6), from Masailand, and P. bettoni Pocock (Proc Zool. Soc. 1898, p. 503), from the area between Mombasa and Uganda. |
