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



each fore central and the fore lateral on its side is less than that 

 between the fore centrals, while that between each hind central and 

 the hind lateral on its side is very much greater than that between 

 the hind centrals, being equal to about (or nearly) double the length 

 of the line formed by these latter; those of each lateral pair are seated 

 obliquely, but not quite contiguously, on a tubercle. 



The legs are moderately long and not very strong ; they are like 

 the cephalothorax in colour, the femora being spotted with black, 

 principally on their outer sides, the other joints are also marked 

 and irregularly banded with black ; they are furnished with hairs 

 and spines ; those of the second pair are distinctly longer than those 

 of the fourth. In some examples the legs were more or less com- 

 pletely wanting in the black markings and spots. 



The palpi are short and similar in colour to the legs ; the radial 

 and cubital joints are very short, the latter is prominent and some- 

 what angular on its upperside, where it is furnished with two long, 

 strong, curved, tapering bristles ; the digital joint is large, and of 

 an elongate-oval form ; the palpal organs are highly developed and 

 complex, one of the corneous processes near their centre having 

 two prominent, curved, horn-like spines. 



The f alces are moderate in length, but not particularly powerful ; 

 and their colour is yellow, with a large blackish patch near their 

 base in front. 



The maxilUe and labium are of normal form ; and their colour is 

 blackish, broadly tipped with pale yellow. 



The sternum is oval, pointed behind ; and its colour is blackish, 

 marked with a broad, yellow, T-shaped marking on its fore part, 

 followed near the middle by a somewhat diamond-shaped patch of 

 the same colour. 



The abdomen is of rather large size, and of a regular oval form, 

 and projects considerably over the base of the cephalothorax ; it is 

 thinly clothed with hairs and bristles ; some of the latter are long, 

 of a pale yellowish colour, and of a spine-like character. Its colour 

 is a straw-yellow, marked and spotted with black ; the upperside 

 presents a prettily freckled appearance, being thickly speckled with 

 small black spots of different sizes, around the principal ones of 

 which there is a slight clear space giving the appearance of an 

 ocellated surface. Along the central longitudinal line of the upper- 

 side there is, usually visible, an indistinctly paler band, edged with a 

 slightly dentated blackish line and narrowing as it approaches the 

 spinners ; this band is crossed towards its fore extremity by a di- 

 stinct but irregular black linear marking reaching on each side to a 

 longitudinal dentated black line ; the dentations of these lines are 

 bold, but bluntish ; the underside of the abdomen is also spotted ; 

 there are likewise some other blackish markings, and some indistinct 

 pale patches. In some individuals there is an indistinct pale trans- 

 verse bar crossing the central one just behind the irregular black 

 line mentioned above ; these examples were of a generally sandy 

 hue, the darker markings being reddish-brown instead of black, and 

 the lees scarcely marked at all. 



