1876.] REV. O. P. CAMBRIDGE ON EGYPTIAN SPIDERS. 585 



The abdomen is roundly truncated before, and broader behind 

 than in front ; it is of a whitish hue, marked and mottled above vvitli 

 pale yellow-brown and a few blackish markings ; on its hinder half 

 these are arranged in two well separated longitudinal lines, and 

 indicate the spaces between the denticulations of the ordinary broad 

 central longitudinal band, which is otherwise scarcely traceable ; the 

 sides are rugulose and marked with some rather indistinct oblique 

 rows of brown spots ; and the underside is faintly spotted with 

 yellowish-brown ; besides some ordinary bristles on the upper- 

 side, there are on each side of the fore part a few strong curved 

 clavate ones in an obliquely longitudinal line ; these bristles increase 

 gradually in strength from the base to the rounded extremity, some- 

 thing like the form of a racket-bat : there may have been others 

 originally ; but if so, they had been rubbed off before capture. 

 Several of these bristles, as well as some others, equally strong but 

 not clavate, are also apparent on the cephalothorax. 



A single adult female was found near Alexandria. 



Gen. Selenops, Duf. 



Selenops jjgyptiaca. (Plate LIX. fig. 10.) 



Selenops cegyptiacus, Sav. et Aud. Egypte, p. 162, pi. vi. fig. 6. 



This Spider appears to be tolerably abundant in the Nile boats ; 

 it used frequently to be seen at night in the cabins and passages of 

 our daha-beah, but, owing to its swift movements and the numerous 

 cracks and crevices at hand, it was very difficult to capture it ; I 

 managed however, to obtain three adult and immature females and 

 several adult males. As no other species was met with during my 

 stay in Egypt, I conclude that this is probably the one described and 

 figured by Savigny and Audouiu, though the example from whicli 

 their figure aud description were made, being immature, gives but 

 little idea of the characteristics of the species. A more detailed 

 description from the adult form will therefore be useful. 



Adult male, length 4^ to a little over b lines ; adult female, 6 to 

 7rr lines. The Spider with legs extended covers a width of two 

 inches and three quarters. 



The cephalothorax is slightly broader at its widest part than it ij 

 long ; its form is very nearly that of a heart, the ocular region forming 

 the acute point, which, however, is here truncated ; it is flat and level 

 throughout, the caput being only a little constricted laterally ; its 

 colour is yellow-brown (the caput being darker than the rest, as 

 also are the normal converging grooves and indentations), aud it is 

 clothed with hairs and a yellowish grey pubescence. 



The eyes are unequal in size and disposed on tuberculate black 

 spots along the whole width of the fore margin of the caput ; four 

 form a curved row in the middle, the curve directed forwards ; 

 and at some little distance from each end of this row is a lateral 

 pair, the eyes of which are very unequal in size, wide apart, and 

 placed obliquely, so that the hinder eye, which is the largest of 

 the eight, is much further from the curved row than the foremost 



