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Show 852 MR. R. I. POCOCK ON SCORPIONS, PEDIPALPS, [Nov. 14, other, with its convexity backwards ; inferior and lateral surfaces darker than the superior, the inferior with a pair of yellowish posteriorly dilated bands running from the stigmata posteriorly towards the spinning-mammilla?. Eyes of anterior and posterior line recurved when viewed from above, those of anterior line also strongly recurved when viewed from the front, the laterals standing much higher than the medians ; median quadrangle a little wider than long, nearly twice as wide in front as behind, the posterior separated by a very narrow space which barely equals half their radius, the anterior separated by a space which is equal to their diameter. Legs armed with numerous spines arranged iu more or less definite rows ; there being, for example, 6 - 6 on the lower side of the tibia? and protarsi of the 1st and 2nd legs ; spines black at base, pale distally. Abdomen longer than wide, widely rounded in front, oval behind ; with distinct black-tipped shoulder-processes, covered with short white hairs, intermixed with particoloured bristles. Basal part of vulva very stout when protruded, and consisting of a right and left outer sheath, the halves of which do not meet in the middle line. Viewed from below, the two halves of the outer sheath show as a right and left rim surrounding a central pale portion, upon which rests the short but broad scape, the anterior part of which divides the rim of the right side from that of the left. The posterior end of the scape does not project so far posteriorly as the posterior border of the subjacent portion of the vulva. Measurements in millimetres.-Total length 12 ; length of carapace 5, of abdomen 9, width of latter 7*5. Loc. Benito Biver (67. L. Bates). In the form of its vulva and other features this species is evidently related to A. suedicola Simon, from Arabia and (according to Pavesi) from Somaliland, to A. mossambicensis, Pavesi, from Mozambique, to A. similis and striata, Bosenberg and Lenz, from Quilimane, and to A. cyrtoscapus Poc, from the Transvaal. ARANEUS RHINURUS, sp. n. (Plate LVI. figs. 9, 9 a). Colour. Carapace olive-brown, clothed with yellow hairs; mandibles, palpi, and legs almost the same colour as the carapace ; distal end of femora, tibia?, protarsi, and the tarsi infuscate, especially ou the 3rd and 4th legs ; upperside of abdomen chalky yellow, with dark sigilla spots and fine black line between them, also with a fine reticulated ornamentation of lines between the low pigment-spots; the tail and the lower side of abdomen black, with symmetrical bright yellow spots on each side of the spinners. Carapace shorter than tibia 1, about as long as patella and tibia 4 ; cephalic region moderately elevated, flatfish above longitudinally ; ocular quadrangle almost square, scarcely narrowed in front. The eyes large and subequal, posterior medians about a |