No. 2.] SPIDERS OF THE MABPTUSA GROI'P. 185 



SADALA GEMMEA SI'. NOV. 



Plate XTV., Figs. 1— le. 



This species has a large and a small variety. 



S . (Large variety.) Length, 6. Length of cephalo- 

 thorax, 2.5 ; width of cephalothorax, 1.4. 



The total length of the small variety is 4.5. 



9 . (Large variety.) Length, 6.5. Length of cephalo- 

 thorax, 2.4; width of cephalothorax, 1.3. 



The total length of the small variety is 5. 



Legs, S , 1423 ; first pair plainly stoutest. 9 , 4132. 



The cephalothorax is rather low. Its under surface falls 

 from the anterior end, so that, although the upper surface is flat 

 from the anterior eyes through two-thirds of the thorax, its 

 thickest point, from above below, is just before the posterior 

 slope to the margin. This slope is quite abrupt. The widest 

 point of the cephalothorax coincides with the thickest, the sides 

 widening gradually from the anterior end. The sides slope 

 outward more widely in the thoracic than in the cephalic part. 

 The quadrangle of the eyes is about one-fourth wider than 

 long, is equally wide in front and behind, and occupies about 

 two-fifths of the cephalothorax. The first row is straight ; the 

 eyes are close together, the middle being two-and^-half 

 times as large as the lateral. The second row is nearer the 

 first than the third. The third is not so wide as the cephalo- 

 thorax. 



The falces in the male are long and obliciuely directed, with 

 a long, toothed fang ; in the female they are very small, short 

 and vertical. The sternum in the male is wide and rounded; 

 in the female, long and narrow. The maxillfe are about twice 

 as long as the labium. The labium is a little longer than wide. 



In the male the color is a bright brown, tinged with golden 

 on the cephalic plate, with a thin covering of yellow hairs. 

 There is a white band on each side of the caput, below the two 

 lateral eyes, and on each side of the thorax are two white bars, 

 running obliquely downward. The anterior end of the abdo- 

 men has a tuft of yellow hairs projecting forward, and a 



