394 REV. O. P. CAMBRIDGE ON NEW DRASSIDES. [June 2, 



particulars as those which distinguish this latter species from D. 

 cegyptius, the difference, too, being similar. 



The falces in the present Spider more nearly resemble those of D. 

 lapidicolens, being larger than those of D. cegyptius, and projecting 

 forwards instead of being nearly vertical. 



The radial joint of the palpus has no apophysis from its fore 

 extremity, and had only one or two strongish spines at its fore ex- 

 tremity on the inner side ; others, however, may have been rubbed off. 

 The palpal organs are similar in their general form and processes , 

 but the curved spine issuing from their base and running round the 

 inner margin is stronger, tbe corneous prominence at their fore part 

 is longer, stronger, and curved, and, instead of three spines in a trans- 

 verse row beneath the fore part of the digital joint, there is in the 

 present species only one strong spine. 



On the outer margin of the palpal organs are two longitudinal 

 parallel reddish-brown lines, which rather converge and become ser- 

 pentine or strongly convoluted at the hinder extremity. 



A single adult male was found by myself among the debris of a 

 wall near Alexandria, in April 1864. 



Drassus .egyptius, sp. n. (Plate LII. fig. 19.) 



Adult male, length 3| lines ; adult female, length 4| lines. 



This species is very nearly allied to the well-known 1). lapidicolens 

 (Walck.). It is, however, smaller than the usual run of that species, 

 and a paler and yellower Spider in its general colouring ; the cephalo- 

 thorax wants the narrow black marginal line ; the spines on the legs 

 are longer and slenderer ; and the abdomen has not the longitudinal 

 dark elongate marking ou the fore half of its upperside, always 

 more or less distinct on that of D. lapidicolens. The falces also, 

 which are long and porrected in that species, are much shorter in 

 the present and nearly vertical. 



A strong distinguishing character is (as usual) presented by the 

 palpi and palpal organs of the male : the radial joint has its upper- 

 side furnished with some long slender spines ; but it is destitute of any 

 projection or apophysis at its fore extremity, which is a little broader 

 than its hinder portion. The digital joint is narrow and elongate. 

 The palpal organs, which occupy about half the length of its under- 

 side, consist of a nearly round pale lobe ; from near the inner side of 

 the hinder extremity of this lobe a slender tapering black spine issues 

 and curves round the outer margin in rather close contact with it, 

 terminating in a fine point near its fore extremity ; on the face of the 

 lobe near the fore part is a very small blackish-brown tubercular 

 eminence or short blunt spinous prominence ; and from its outer ex- 

 tremity before issues an obtusely ending prolongation directed 

 inwards ; beneath the fore extremity of the digital joint, near the 

 palpal organs, are three conspicuous and characteristic black spines, 

 directed forwards and placed in a transverse line. 



The eyes are very similar, both in size and position, to those of D. 

 lapidicolens; those, however, of the foremost row are rather nearer the 

 fore margin of the caput, leaving a narrower clypeus than in that 

 species. 



