270 REV. O. P. CAMBRIDGE ON THE [Feb. 20, 



or apophyses ; the sides and underside of the abdomen are deep 

 brown, paler in the central line of the underside. The female re- 

 sembles the male. 



This Spider, although very similar and nearly allied to P. den- 

 tifera, may easily be distinguished by the differential characters 

 given above. Several examples of both sexes were found on the 

 surface of rocks near Beirut. A single example was also met with 

 at each of the following places : — Mount Carmel, Nain, and the 

 Lebanon (Ain-Ata). When disturbed, it runs with exceeding swift- 

 ness over the face of the rocks, and conceals itself in the inequalities 

 of their surface. 



Pai^estina sexoculata, sp. nov. 



Female adult, length 1| line. 



Very similar in size, form, and structure to the foregoing species, 

 the present may be distinguished by a shorter and stouter make ; the 

 abdomen also projects more over the base of the cephalothora.v ; the 

 whole ot the fore part, including the legs, is of a bright orange-yellow 

 colour tinged with red ; the cephalothorax is minutely but thickly 

 impressed with small punctures ; the abdomen is of a short oval form 

 and verv convex above ; the upperside is black and glossy, but not so 

 polished or corneous-looking as in the two former species; the under- 

 side is pale yellow. 



The eyes are oniy six in number ; two large dark ones are seated 

 transversely on a blackish patch, and form a central pair, on either 

 side of which is another pair; these are quite small, those of each 

 pair are placed at right angles to the line of the central pair, and 

 are nearly contiguous to each other ; the fore one of each of these 

 lateral pairs is separated from the central eye nearest to it by about 

 the length of its own diameter. 



An adult female of this Spider was found at Jerusalem. It agrees 

 with the typical species in all generic characters, except that of the 

 number of ttie eyes : if this latter character be a permanent one 

 of the species, it can yet, 1 think, in this instance have only a spe- 

 cific influence ; possibly the number of the eyes may be accidental ; 

 instances are not unfrequent of an abnormal number of eyes in 

 Spiders of different genera. The Spider itself is otherwise interest- 

 ing, because it indicates in some respects a closer affinity to Lachesis 

 than either P. dentifera or P. expolita, and in some others a 

 closer affinity than these do to Enyo. 



Genus Enyo (Savigny). 

 Enyo grjECA, Koch, Die Arachn. x. p. 83, pi. 348. fig. 811. 

 An adult male of this Spider was found at Nain. 



Enyo luctuosa, sp. nov. 



Male adult, length 1| line. 



In form and general structure this species is like E. germanica 

 (Koch). 



