588 REV. O. P. CAMBRIDGE ON EGYPTIAN SPIDERS. [June 20, 



used to occur on board the daha-beah. Waking up on one occasion 

 in the middle of the night, I heard a crunching and crackling noise 

 close to my head ; and on looking round, close to my ear was a large 

 Spider, and a still larger Cockroach in deadly struggle together. To 

 stretch out my hand softly and reach a large chip-box close by and 

 enclose them within it was the work of a moment ; but on looking 

 in the next morning, the Cockroach had disappeared, all except the 

 harder parts, which were reduced to small fragments. I gave the 

 monster several days to digest his meal and think upon things in 

 general, and then, after a dose of chloroform, consigned him to the 

 collecting-bottle. 



Savigny's figure of this Spider is so good that it is impossible to 

 err in the determination of the species. 



Sparassus cognatus, sp. n. 



The examples of this Spider met with are not nearly so large as 

 those of S. walckenaerius — though, not having met with either 

 species in the adult state, this cannot be considered any certain 

 proof of their relative size when arrived at maturity. 



The following differences will serve to distinguish the two species. 

 In the present one the cephalothorax is of a plain yellow colour 

 entirely devoid of the brown markings so characteristic in S. walc- 

 kenaerius ; the legs also are completely destitute of the darker annu- 

 lations which are more or less visible in all the examples I met with 

 of that species ; the central eyes also of the hinder row in S. cognatus 

 are as widely separated from each other as each is from the hind 

 lateral eye on its side, or perhaps a trifle more widely, while in 

 S. walckenaerius the interval between the hind centrals is a trifle 

 less than that between each and the hind lateral on its side. Also 

 the dark markings on the abdomen in S. cognatus are of a red-brown 

 colour (often of a bright rusty red), while those on S. walckenaerius 

 were of a dull brown hue. 



Examples of this Spider were met with both near Cairo and in 

 Upper Egypt. Possibly it may be the immature form of Sparassus 

 linnm, Sav. ; but at present I am inclined to think otherwise. 



Sparassus suavis, sp. n. 



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



The cephalothorax of this Spider is broader than long, though 

 constricted and truncated at its fore extremity ; the profile line of 

 the upperside describes a slight and uniform curve ; it is of a dull 

 orange-yellow colour, clothed with greyish yellow hairs, and marked 

 faintly with dusky brown in the normal grooves and indentations ; 

 the height of the clypeus scarcely exceeds the diameter of one of 

 the fore central eyes. 



The eyes are in two curved rows, the curves directed away from 

 each other, the hinder row being the most curved and the front 

 row the shorter ; those of the fore central pair are largest of the 

 eight ; those of the hind central pair are further from each other 

 than each is from the hind lateral on its side, while those of the fore- 



