No. 3.] SPIDERS OF THE HOMALATTUS GROUP. 177 



a straight row. The middle are twice as large as the lateral. 

 The second row is plainlj^ nearer the first. The third row is a 

 little narrower than the cephalothorax at that place. 



This genus, by its coloring and general appearance, re- 

 calls Icius and the allied genera. The position of the eyes, 

 however, seems to bring it nearer to the Homalattus group. 

 We have only the one species described below. 



SASSACUS PAPENHOEI SP. NOV. 



Plate, XVI., Figs. 11— lie. 



S . Length, 4.7. Length of cephalothorax, 2 ; width of 



cephalothorax, 1.7. 

 Legs, 1423 ; fourth and second not very unequal. . First 

 plainly longer than the fourth, and stouter than 

 the others, but not so much stouter as in the fe- 

 male. 

 9 . Length, 5.5. Length of cephalothorax, 2 ; width of 

 cephalothorax, 1.7. 

 Legs, 1432 ; first pair much the stoutest. 

 There is a curious difference between the two sexes in the 

 shape of the cephalothorax. While in the male the anterior 

 thoracic part is flat, and is on a level with the cephalic, and the 

 posterior slope abrupt, in the female, the thoracic part rounds 

 off gently from the dorsal eyes to the posterior border. The 

 falces are vertical and moderately long and stout. The sternum 

 is small and oval. The maxillpe are thick and rounded, and 

 the labium is small. 



The coloring is very brilliant. The upper surface of the 

 cephalothorax and the upper and under surfaces of the ab- 

 domen are covered with iridescent scales, the prevailing colors 

 of which are pink and gold. The upper sides of the cephalo- 

 thorax are covered with iridescent scales, which are white with 

 greenish reflections. The clypeus and lower sides have snow- 

 white bands. The abdomen has four punctate spots on the 

 dorsum and is encircled by a wide, snowy white band. The 

 legs are brown, the first pair being the darkest, except the 



