262 REV. O. p. CAMBRIDGE ON NEW [Feb. 15, 



Fakes massive, as long as the eephalothorax, two-clawed, the 

 upper claw fixed, the lower movable, aud both curved. 



Maxillce 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 

 eephalothorax. 



Abdomen longer than the eephalothorax. A small elongate oval 

 aperture towards the hinder part of the underside is probably the 

 genital ojjeiiing, while a still more minute orifice beneath its extre- 

 mity is probably the anal aperture. 



Leys moderately long and tolerably strong ; they are 6-joiated, 

 furnished with long bristles, and terminathig in two S-curved claws, 

 beneath whicii is a longish, slender, slightly upturned style, plu- 

 mose or finely pectinated along its underside. 



Palpi -1-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. 



PCECILOPHYSIS KERGUELENENSIS, Sp. n. (Plate XIX. fig. 4.) 



Adult female. Length \ line. 



The eephalothorax is of a somewhat quadrate form, narrower 

 before than at its junction with the abdomen; it is moderately con- 

 vex 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 eephalothorax 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 extre- 

 mity of the caput. 



The leys 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 jilumose on its infe- 

 rior side. The joints do not diffa- greatly in length, the first two 

 or basal ones being the longest, and the rest nearly equal. 



The palpi are similar, in 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 

 aud minute. 



'Y\\ef aloes are as long as the eephalothorax, 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 the same straight 

 line and in the same plane as the eephalothorax, which the falces 

 equal in length. 



The maocilla are long, their inner extremities considerably pro- 

 duced 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 thaa 



