302 PROCEEDINGS OF THE ACADEMY OF [March, 



two-fifths its greatest transverse diameter, in the $ somewhat rounded 

 and sHghtly more than one-half this diameter, highest at or shghtly 

 in front of the middle, entirely smooth except for a few long hairs in 

 the ocular area. Head low and obHque on the sides. Chelicera mas- 

 sive with strong macula basalis, very strongly arched on the anterior 

 border, longer than the width of the clypeus, in length about twice the 

 height of the head in front, with 3 pairs of teeth. Sternum decidedly 

 longer than broad, rather pointed posteriorly. Labium fully one-half 

 as long as the maxillae, longer than broad, truncated straight. An- 

 terior spinnerets slightly the longest. Legs short and stout with short 

 spines; vertically inserted, longer, fine hairs are particularly noticeable 

 on the tibiae and metatarsi ; length of leg IV to cephalothorax, c? 3.8 : 1, 

 9 3.5 :1; metatarsus IV shorter than patella and tibia combined. 

 $ palpal claw with 4 teeth. 



Dimensions. 



c? ? 



Cephalothorax, 3.4 4 (3 in smallest) 



Abdomen, 3.3 5 



Leg I, 9.2 10.3 



Leg II, 8.8 9.8 



Leg III, 8.2 9.3 



Leg IV, 13 14 



Color (in alcohol). — Cephalothorax above blackish or deep brown in 

 the eye area, with a yellowish spot postero-lateral to each posterior eye, 

 A median yellow band arises between the posterior eyes, just behind 

 them enlarges to a width slightly broader than that of the ocular 

 area, is deeply constricted in front of the dorsal groove, enlarged to 

 its greatest diameter around this groove, constricted again behind 

 this groove and then slightly enlarged again at the posterior mar- 

 gin ; in its anterior portion this band contains a median and a pair 

 of lateral darker lines. There is a more or less distinct broad, inter- 

 rupted yellow submarginal band on the posterior two-thirds of the 

 cephalothorax; a yellow line beneath the anterior eyes; while the 

 remainder of the cephalothorax is shining dark brown or blackish. 

 Sternum shining, with few hairs, yellowish-brown with darker margins. 

 Abdomen in the brightest individuals above with a narrow median 

 green band on its anterior half, this band pointed at each end and 

 bordered laterally by a broader stripe of silvery-white interrupted by 

 black spots; on the posterior half of the dorsum the silvery- white is 

 continued as a few broad transverse areas, spotted by black; lateral to 

 this silvery-white is a broader black area, deep black and not inter- 



