Rev. 0. P. Cambridge on neto Species of Araneidea. 69 



enlarged extremities have a reddish hue in some lights, and 

 their outer extremity, above the insertion of the fang, is deep 

 black-brown. The fang, being folded back in its position of 

 rest, was nearly hidden ; but apparently it was almost straight 

 and not quite as long as the falces. 



Abdomen apparently rather slender-oval in form, and trun- 

 cate at its hinder extremity. 



Paljri short and slight. Owing to the specimen being dry, 

 they could not be extended so as to expose the structure of the 

 extreme joints and the palpal organs. 



A single specimen of this singular-looking spider is in the 

 Hope Collection at Oxford. 

 Hab. Unknown. 



Since writing the above, I have received twelve specimens 

 of this species from Mr. G. H. K. Thwaites, of Ceylon, — nine 

 males and three females. These, being in spirit, admit of a 

 more accurate examination than the diy specimen above de- 

 scribed. As far as the above description goes, however, its 

 correctness is confirmed by the examination of Mr. Thwaites's 

 specimens ; but the following additional particulars are worth 

 noting : — 



The spiders themselves, although adult, differ greatly in size, 

 some being larger than that above described, and others at 

 least one-third smaller. The falces also vary considerably in 

 their relative length in different specimens, in one rather ex- 

 ceeding the length of cephalothorax and pedicle connecting it 

 with the abdomen, in another only just equalling tlie length of 

 the cephalothorax. The falces are armed on their inner sides 

 with two longitudinal rows of sharp teeth ; the inferior row 

 consists of about sixteen, nearly equally dividing the whole 

 length of the falx ; the superior row consists of but five, un- 

 equally dividing the fore half of the falx, but stronger than 

 those of the inferior row. The fang equals the falx in length, 

 and is slightly curved at its extremity. The abdomen (which 

 was shrunken and shapeless in the dry specimen) was of a 

 long oval form, widest behind, and strongly constricted at 

 about one-third of the length from its fore extremity, almost 

 dividing it into two segments ; on either side of the constricted 

 portion is an oblique pale patch. 



Palpi about two-thirds the length of the falces, or rather 

 more in some specimens ; radial joint long, double the length 

 of the cubital, enlarging gradually towards its extremity, 

 which has a small, sharp, black-pointed projection on its outer 

 side ; digital joint small, oval in form ; palpal organs simple 

 and not very prominent, consisting of a simple corneous lobe. 



