18/6.] REV. O. P. CAMBRIDGE ON EGYPTIAN SPIDERS. 5G5 



cephalothorax is also strongly margined with dark brown ; and each of 

 its sides is marked with three short, but distinct, oblique brown bars 

 or stripes joining in at their lower extremity with the lateral brown 

 margins. The surface of the cephalothorax is closely covered with 

 erect bristly hairs. 



The eyes are in three pairs, in the usual position ; the two fore 

 lateral eyes are the largest, and those of the central pair appear to 

 be the smallest, though not much, if any thing, smaller than the 

 hind laterals. 



The legs are yellow ; the tibiae of the fourth pair are broadly and 

 distinctly banded with brown ; those of the third pair are faintly so 

 banded, while those of the first and second pair are dark yeliow- 

 brown with a narrow indistinct band of yellow, the metatarsi also 

 of the first pair being strongly suffused with yellow-brown. 



The palpi are yellow, annulated with dull brown. 



The falces yellow, with a considerable part of their foreside 

 yellowish brown. 



The maxilla, labium, and sternum are yellow. 



The abdomen is of a deep chocolate-brown above and yellow under- 

 neath ; the central longitudinal line of the upperside is a little paler, 

 and has two yellow spots on its fore part, and a yellow longitudinal 

 line on its hinder part ; the brown and yellow of the upper- and under- 

 sides run into each other in a Vandyke pattern, giving the sides 

 a very distinct curvilinearly striped appearance. The abdomen, like 

 the cephalothorax, is covered thinly with strong erect bristly hairs. 



A single example of this pretty and very distinct species was 

 found among debris near Cairo in January 1864 ; and I have very 

 great pleasure in naming it after my kind friend Dr. Ludwig Koch, 

 of Niirnberg. 



Fam. Pholcides. 

 Gen. Pholcus, Walck. 



Pholcus semicaudatus, sp. n. 



Adult male, length 2 lines. 



The cephalothorax is of the ordinary form and of a pale straw- 

 yellow colour. 



The eyes are in the usual general position ; three large eyes con- 

 tiguous to each other in a triangle on a tubercle on either side, and 

 a pair of much smaller size and nearly contiguous, just opposite the 

 inner eyes of the other two groups ; each eye of this pair is rather 

 less than a diameter's distance from the two foremost eyes of the 

 lateral group nearest to it. 



The legs are very long, exceedingly slender, and furnished with fine 

 hairs ; their colour is similar to that of the cephalothorax, the genual 

 joints are yellow-brown ; and the femora and tibiae, especially the 

 former, are distinctly marked with small linear black dots and spots. 



The falces are suffused with yellow-brown, strongly excavated in 

 front, their fore margin on the outer side terminating in a corneous 

 point, and of a red-brown colour. 



