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Show 262 REV. O. P. CAMBRIDGE ON N E W [Feb. 15, Falces massive, as long as the cephalothorax, two-clawed, the upper claw fixed, the lower movable, and both curved. Maxilla large, coalescing at their base, and produced at their inner extremity into a strong angularly pointed projection. Labium none, and sternum none, properly so called, the basal joints of the legs being articulated to the inferior surface of the cephalothorax. Abdomen longer than the cephalothorax. A small elongate oval aperture towards the hinder part of the underside is probably the genital opening, while a still more minute orifice beneath its extremity is probably the anal aperture. Legs moderately long and tolerably strong; they are 6-jointed, furnished with long bristles, and terminating in two S-curved claws, beneath which is a longish, slender, slightly upturned style, plumose or finely pectinated along its underside. Palpi 4-jointed, similar to the legs in armature ; the terminal (or digital) joint ends with a small hooked claw ; and the bristles or hairs on it are long and plumose. PffiCILOPHYSIS KERGUELENENSIS, sp. n. (Plate XIX. fig. 4.) Adult female. Length \ line. The cephalothorax is of a somewhat quadrate form, narrower before than at its junction with the abdomen; it is moderately convex above, and has a few long pale hairs or slender bristles directed forwards on its upperside: its profile line is nearly level; and the colour of the cephalothorax and abdomen is pale yellow, the legs and other parts being of a whitish hue. The eyes are small., but close together near the hinder part of a small roundish tubercle or eminence, at the middle of the fore extremity of the caput. The legs are 6-jointed, rather long, tolerably strong, not greatly differing in length, their relative length being 1, 4, 2, 3; they are furnished with long pale bristles; and the tarsi, which are undivided and with two claws, are curved somewhat in the form of an S : beneath them is a largish bristle or style, pectinated or plumose on its inferior side. The joints do not differ greatly in length, the first two or basal ones being the longest, and the rest nearly equal. The palpi are similar, iu their general armature, to the legs. The digital joint is longer than the radial, and of an ovoid form; its hairs are plumose, and the single terminal claw is sharply hooked and minute. The falces are as long as the cephalothorax, very massive at the base and didactyle, the lower claw being movable and opposed to the upper one; both claws are curved, but project in tbe same straight line and in the same plane as the cephalothorax, which the falces equal in length. The maxilla are long, their inner extremities considerably produced into an angularly pointed form, and extending close beneath the falces, to about two thirds of their length. The abdomen, looked at in profile, is higher and more convex than |
