444 Mr. J. Blackwall on new Species of Spiders. 



pair of legs, with the exception of the base, has a dark-brown 

 hue. Its palpi are short and robust, and the humeral joint has 

 two conical processes at its base, on the under side ; the cubital 

 and radial joints are short, provided with hairs, and a long 

 bristle directed forwards from their extremity, in front, and, 

 with the digital joint, are of a brown colour ; the digital joint is 

 oval, convex and hairy externally, concave within, comprising 

 the palpal organs ; these organs are highly developed, with a 

 strong dark-brown spine, which originates near their extremity, 

 and curving obliquely upwards on the outer side, passes trans- 

 versely towards the inner side, where it terminates in an acute 

 point ; a prominent, convex, yellowish- white piece occurs within 

 the curvature of the spine, and the convex sides of the digital 

 joints are directed towards each other*. 



The specimen from which the above description was made 

 was captured in Pernambuco by Mr. Eyton Williams of Den- 

 bigh, who had previously supplied me with adult females of the 

 same species. 



Family TiiEiiiDiiDiE. 



Genus Piiolcus, Walck. 



Pholcus pallidus. 



The sexes are similar in colour, but the male is rather the 

 smaller. Its palpi are short, very robust, and of a pale dull- 

 yellow hue ; the humeral joint is somewhat convex on the under 

 side, and the radial, which is much the largest joint, is greatly 

 dilated., and very convex on the upper side : the digital joint has 

 an irregular figure ; it is elongated, with a short, slightly curved, 

 pointed black spine at its abrupt termination, and its base, 

 which is prominent on the inner side, and densely fringed with 

 long curved bristles, has a small red-brown process on its 

 inferior margin ; the palpal organs are moderately developed 

 and not very complex in structure, having a glossy, yellowish- 

 white, subglobular base attached to the inferior surface of the 

 digital joint, which projects from its convexity, and on the lower 

 side two short, strong processes united at their base, and of a 

 dark-brown colour at their extremity. 



Since a description of an adult female of this speeies was 

 given in the ' Annals and Mag. of Nat. Hist./ Series 3, vol. i. 

 p. 433, I have received specimens of both sexes, in a state of 

 maturity, from Mr. Eyton Williams, by whom they were col- 

 lected in Pernambuco. 



* For a description of the female, see Ann. and Mag. Nat. Hist. ser. 3. 

 vol>ii. p. 331. 



