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Show 406 REV. O. P. CAMBRIDGE ON N E W DRASSIDES. [June 2, slightly angulate ; and there is a prominent point or spot of the same hue about the middle of each side. The sides and underside of the abdomen are similar to the upperside ; the sides, however, are tinged forwards with reddish yellow-brown, and the underside has a strongish, longitudinal, central band of a mouse-coloured brown. The spinners are rather short, those of the inferior pair much the strongest, those of the superior pair exceeding them in length by the very short second joint of the former. An adult female differed in being rather larger, paler-coloured, and the abdomen less strongly marked. The falces also appeared to be less projecting, and the legs are shorter and stronger. The genital aperture is small, of a somewhat semilunar form, margined with red-brown. An adult example of each sex was found by myself on low plants near Cairo, in January 1864. CHEIRACANTHIUM INORNATUM, sp. n. (Plate LII. fig. 30.) Adult male, length 3^ lines. The cephalothorax, legs, palpi, and sternum of this Spider are yellow, the falces deep red-brown, the maxillae and labium being of a lighter and duller red-brown hue. In general form and aspect it is of the ordinary type. The cephalothorax is covered pretty densely with fine, pale, silky hairs; it is short, broad, slightly constricted laterally at the caput, whose fore margin is squarely truncated; and the ocular region is somewhat suffused with reddish brown. The eyes are small, in the ordinary position, and occupy nearly the whole width of the fore part of the caput. The clypeus is scarcely equal to the diameter of one of the fore central eyes. The eyes of the front row form a straight line, shorter than the hinder row, which is curved, the curve directed backwards. The eyes of the hind central pair are rather nearer to each other than each is to the lateral of the same row on its side ; and the same relative position is observable with respect to the eyes of the front row. The fore centrals are the largest of the eight; they form a line shorter than the hind centrals, and each is separated from the hind central opposite to it by an interval about equal to the diameter of the latter ; those of each lateral pair are seated on a tubercle contiguous to each other and in a slightly oblique line. The legs are long and slender ; their relative length is 1,4, 2, 3 ; they are furnished with hairs, and a few not very long nor strong dark brown spines. Each tarsus ends with two claws and a compact blackish claw-tuft. The palpi are not very long nor strong. The cubital joint is short; and the radial is rather more than double its length, cylindrical, and its outer extremity terminates in a small, slightly tapering, straight, red-brown apophysis, whose point is a little bent and somewhat un-guiform. The radial joint is furnished with long prominent hairs, principally on the underside. The digital joint is about equal in length to the radial; it is of ordinary form, hairy, and suffused with brown, and considerably prominent on the outer side. The normal |
