36 PECKHAM. [Vol. 2, 



The female is much like the male ; the abdomen, however, 

 is brown rather than black, and the legs are lighter in color, 

 the second pair being much paler than the others. 



Habitat. Ceylon. 



Of the Cejdon species of Salticas, plataleoides is large and 

 light colored and is easily identified by its peculiar falces ; pro- 

 videns is large and dark colored, and presents a very ant-like 

 appearance, while spissus and imbellis are much smaller and 

 are easily distinguished by their coloration. 



SALTICUS IMBELLIS N. SP. 



PL II., Fig. 10, male ; 10a and 10b, male palpus. 

 S . Total length, 6 mm. 



Cephalothorax : Length, 2.1 mm. ; width, 1.2 mm. 



Legs, 4132; equally stout. 



Falces, 1.5 mm. 

 9 . Total length, 5.5 mm. 



Cephalothorax: Length, 2.1 mm.; width, 1.1 mm. 



Legs, 4182. 



The cephalothorax is moderately high ; the cephalic part 

 is limited by a transverse depression, behind which the thoracic 

 part slants rather steeply to the posterior border. There is no 

 such difference in the planes of the cephalic and thoracic parts 

 as is usual in Salticus ; in the female the thoracic slope is more 

 gradual than in the male, so that the upper surface is almost 

 level. The thoracic part does not narrow behind as it does in most 

 of the species. The quadrangle of the eyes is one-third wider 

 than long, wider behind than in front, and occupies two-fifths of 

 the cephalothorax. The anterior eyes are close together, in a 

 straight row, the middle being twice as large as the lateral. 

 The second row is about equally distant from the first and 

 third rows. The dorsal eyes are larger than the lateral and 

 are placed on the side of the cephalothorax. The falces of the 

 male are long and horizontal ; they are not flattened on the 

 upper surface, but the inner face of each falx slants downward 

 and inward from the upper edge so that the two only meet 

 along the line of their lower edges, not along the whole surface 



