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



Koch (Marpissa brevipes, Koch, Salticus obscurus, Bl.), which it 

 closely resembles in form, size, colour, and markings ; and it may 

 be distinguished bv the legs of the first pair being like the rest, but 

 slightly striped with brown; whereas in B. obscurus, they are almost 

 wholly (at least the femoral, genual, and tibial joints) deep chocolate- 

 brown ; the humeral and cubital joints also of the palpi are of the 

 same hue, whereas in the present Spider the palpi have scarcely any 

 dark markings. Although these differences appear at first sight but 

 slight ones b) T which to distinguish the species, I feel convinced that 

 they will be found to be constant ; I have examined numerous 

 examples of the European form, and find no variation whatever in 

 the markings of the legs and palpi ; and I should be confident that 

 some day the adult male and other examples of the female will 

 further prove their distinctness from S. obscurus. 



A single example only of the adult female was found in Upper 

 Egypt. 



Gen. Attus, Sim. (Salticus, Latr. ad partem). 



Attus delectus. (Plate LX. fig. 88.) 



Attus delectus, Cambr. Spid. Pal. & Syr., P. Z, S. 18/2, p. 326. 



Adults of both sexes of this pretty and distinctly marked Spider 

 were found near Alexandria. 



Attus mouffettii. 



Salticus mouffettii, Sav. et Aud. Egypte, p. 171, pi. vii. fig. 17. 

 An adult female of this well marked Spider was found near 

 Alexandria. 



Attus staintonh. 



Salticus staintonii, Cambr. Spid. Pal. & Syr., P. Z. S. 1872, p. 

 331, pi. xiv. fig. 20. 



Salticus congener, Cambr. loc. cit. p. 332. 



Adults of both sexes of this exceedingly distinct Spider were 

 found in Upper Egypt, and are undoubtedly identical with those 

 described I. c. supra. 1 have, moreover, now no hesitation in 

 determining S. congener (1. c. supra) to be the female of 5. (Attus) 

 staintonii, although differing from it so considerably in colour and 

 markings. 



Attus spiniger. (Plate LX. fig. 103.) 



Salticus spiniger, Cambr. Spid. Pal. & Syr., P. Z. S. 1872, p. 339. 



Both sexes, adult as well as immature, were found on the trunks 

 of palm-trees at various places in Egypt, between Cairo aud Assouan. 

 The very long, circularly coiled, filiform spine, connected with the 

 palpal organs of the male, forms a very striking and distinguishing 

 character, and renders the present Spider an easy one to be 

 determined. 



Attus paykullii. 



Salticus paykullii, Sav. et Aud. Egypte, p. 172, pi. vii. fig. 22. 



