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Show 410 REV. O. P. CAMBRIDGE ON N E W DRASSIDES. [June 2, luteous yellow colour, with a slight indication of the ordinary elongate macula on the fore half of the upperside. The spinners are not large; those of the superior pair are two-jointed, the second joint being small and shorter than the first. The adult female resembles the male in colours and general characters; the genital aperture is small and of a narrow transverse kidney-shape. The colour of the abdomen in this and many other very similarly coloured species can hardly be reliable as above described, the specimens having been some time preserved in spirits of wine; in our indigenous British species the colours of the abdomen are in life more or less green, while the spirit discharges this in a short time, leaving it only of a dull yellow; and this is very probably the case in the present and many other exotic species of this same genus. An adult male and female of this remarkable and easily distinguished Spider were contained in the Bombay collection received from Major Julian Hobson ; and the collections received from Ceylon from Mr. G. H . K. Thwaites also contained many adult examples of both sexes. CHEIRACANTHIUM VORAX, sp. n. (Plate LII. fig. 33.) Adult male, length 3| lines ; adult female 5 lines. The whole of the fore part of this species (except the falces, which are of a deep rich reddish brown, the ocular region, the maxillae, and labium, which are suffused with reddish brown) is yellow; the cephalothorax is (looked at from above) short and broad, round behind, constricted laterally at the caput, broad and truncate at the eyes; the normal lateral grooves and indentations are indicated by dusky yellow converging streaks; the profile of the cephalothorax is curved, sloping quickly from the middle of the caput to the frontal m argin or lower edge of the clypeus ; the hinder slope is gradual and also curved; it is pretty fairly clothed with fine, rather short, pale hairs. The clypeus is very low, being less in height than the diameter of one of the fore central pair of eyes. The eyes are in two almost equally curved transverse rows of very nearly equal length ; the front row is the straightest, and the curves are directed away from each other; those of the fore central pair are the largest of the eight, and are rather nearer together than each is to the fore lateral eye nearest to it; and this is also the case in regard to the eyes of the hind central pair; these with the fore centrals form very nearly a square, whose transverse diameter, however, is a little longer than its longitudinal; those of each lateral pair are seated slightly obliquely on a small tubercle, and are very near to each other, but not contiguous. The legs are long, moderately strong; their relative length is 1, 4, 2, 3 ; they are furnished with fine hairs and a very few spines, those on the tibial and metatarsi of the fourth pair being the most numerous and arranged somewhat in rings; the tarsi terminate with the usual two claws, beneath which is a compact scopula of black hairs. The palpi, are rather slender and not very long; the radial is full |