No. 3.] SPIDEBS OF THE HOMALATTUH GROUP. Ki7 



less to a little more than half of the length of the cephalothorax. 

 The anterior eyes are usually close together in a slightly curved 

 row. The middle eyes are nearly twice as large as the lateral. 

 The second row is sometimes nearer the first than the third 

 row, and sometimes half-way between the two. The third row 

 is as wide as the cephalothorax at that place. The eyes of this 

 row are further from each other than from the lateral borders. 

 Sometimes the first leg is longest, sometimes the fourth, but the 

 first and fourth are always longer than the second and third. 



Ballus is closely related to Homalattus and Rhone, but the 

 cephalothorax is lower and the cephalic part is much shorter 

 in proportion to the thoracic. 



The type of this geirus is Ballus depressus Wlk. The best 

 description of this species is that of Simon in his Arachnides de 

 France, Vol. III., p. 203. We include in the genus Ballus the 

 species armadillo, ajnescens, tantalus and sequipes, all formed 

 bj^ Simon, and youngii Peckham, North American Attidse, p. 87. 



BEATA GEN. NOV. 



Stout, medium-sized spiders, with the cephalothorax 

 rounded. 



The cephalothorax is high, and is as wide as long. The 

 widest point is just behind the dorsal eyes. The sides round 

 out widely from above below, and the upper surface is convex. 

 It is not trunacted behind. 



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

 and is very slightly wider behind than in front. It occupies a 

 little more than half of the length of the cephalothorax. The 

 anterior eyes are large. They form a straight or very slightly 

 curved row, and are near together, though not quite touching. 

 The lat-eral eyes are a little more than half as large as the 

 middle. The second row is a little nearer the first than the 

 third. The third row is plainly not so wide as the cephalo- 

 thorax at that place. 



The relative length of the legs is 1432. The falces are 

 long, stout and vertical. The abdomen is thick and rounded. 



