No. 2.] SPIDERS OF THE MARPTUSA GROUP. 105 



legs are brown, the first pair being a little the darkest. The 

 falces are dark brown. The labium is very dark, the maxillfe, 

 sternum and coxa3 much lighter. 



A single female from Pumamarco. 



MENDOZA GEN. NOV. 

 Plate X., Figs. 4—46. 



Spiders above medium size, but not very large. 



The cephalothorax is only moderately high, and is flat on 

 the upper surface throughout the greater part of its length, ex- 

 cepting a transverse depression behind the dorsal eyes. The 

 posterior slope is gradual. The sides are slightly rounded out 

 from above downward. The widest part is at the posterior end, 

 from which point there is a gradual and very slight contraction 

 to the anterior end. 



The quadrangle of the eyes is one-third wider than long, is 

 slightly wider behind than in front, and occupies about two- 

 fifths of the cephalothorax. The first row of eyes is straight. 

 The middle eyes are sub-touching. The lateral are slightly 

 separated from them ; the middle are less than twice as large as 

 the lateral eyes. The second row is half-way between the first 

 and third rows. The third row is narrower than the cephalo- 

 thorax at that place. The lip is longer than wide. 



The type of this genus is Attus memorabilis Cambridge 

 (Spiders of Egypt, Proc. Zool. Society of London, 1876, p. 618, 

 plate LX., fig. 110). The measurements of this species are as 

 follows : 



$. Length, 11. Length of cephalothorax, 4.4; width of 

 cephalothorax, 3.7. Relative length of legs, 43l2, the first pair 

 being the stoutest. 



We have one female from Egypt. 



Mendoza is nearest Marptusa, but is not so massive. The 

 quadrangle of the eyes is wider behind (in Marptusa it is wider 

 in front). The cephalic part is a little longer and it is not so 

 wide across the middle of the cephalothorax. The sides are 

 more nearly parallel than in either Marptusa or Menemerus, 



