138 PECKHAM. [Vol. 2, 



sides of the cephalic part. The clypeus is covered with white 

 hairs. The legs and palpi are reddish-yellow; the falces are a 

 shade darker and redder. The abdomen is pale, with four 

 transverse, curved, brown bands, between which are silvery- 

 white hairs. 



As in Sadala gemmea, the whole appearance of this female 

 suggests that of Anoka mitrata. We have numerous specimens 

 from Santarem, Brazil (Smith collection). 



SADALA DESERTA SP. NOV. 



Plate XIV., Figs. 3— 3e. 



S . Length, 5.2. Length of cephaiothorax, 2.5 ; width of 

 cephalothorax, 1 .5. 



Legs, 14 23 ; first and second pairs stoutest. 



$. Length, 5. Length of cephalothorax, 2 ; width of 

 cephalothorax, 1.2. 



Legs, 4132; first pair a little the stoutest. 



The cephalothorax is rather low, and is shaped very much 

 like that of gemmea. The under surface slopes downward, so 

 that the cephalothorax is thicker, from above below, in the 

 thoracic part than it is in front. Above it is flat through the 

 caput and three-fourths of the thorax. There is a circular 

 post-ocular depression, from which light colored rays diverge, as 

 in magna. The widest point is in the thorax, well behind the 

 dorsal eyes, and the sides slope outward more in the thorax than 

 in the anterior part. The clypeus slants backward. The quad- 

 rangle is one-fourth wider than long, is equally wide in front 

 and behind, and occui^ies about two-fifths of the length of the 

 cephalothorax. The anterior eyes are slightly separated and 

 form a straight line, the middle being a little more than twice 

 ■as large as the lateral. The second row- is plainly nearer the 

 first than the third. The third row is narrower than the 

 cephalothorax. 



The falces are short and vertical in the female; stouter, 

 longer, obliquely directed forward and having a long fang in 

 male. The labium is longer than wide. The maxilla? are 



