1904.] NATURA.L SCIENCES OF PHILADELPHIA. 281 



Form.— Cephalothorax in front truncated nearly straight, about 

 one-half its greatest transverse diameter, highest at the posterior eyes 

 (in the c? behind the middle), sides of the head steep. Chehcera 

 longer than the clj^eus wide, about 2.5 the height of the head in front, 

 wdth three pairs of teeth. Sternum longer than broad. Labium 

 longer than broad, more than one-half the length of the maxillae, 

 slightly concave apically. Spinnerets equal in length. Legs short, 

 leg IV to cephalothorax in cJ* 3.6 : 1, in 9 3.2 : 1. $ palpal claw^dth 

 6 teeth. 



Dimensions. c? ? 



Cephalothorax, 7.3 8 



Abdomen, 6 10 



Leg 1 24 22 



Leg II 22 20.5 



Leg III, 20 20 



Leg IV, 26.5 25.5 



Color of 9 (in alcohol). — Cephalothorax above dark reddish-brown, 

 with a median paler red band arising at the second eye row, enlarging 

 behind the eye area to a width equal to that of the second eye row, 

 constricted deeply a little before the middle, enlarging again (to its 

 greatest diameter) around the dorsal groove where its margins are 

 dentated, and behind this groove terminating very narrow. There is 

 a broad, interrupted submarginal band of the same color on each side. 

 Sternum deep reddish-brown like the A'entral surface of the coxae. 

 Abdomen above with a large black spot at the anterior end on each side 

 of the mid-line, and from each of these spots a blackish, interrupted 

 band passes back along the margin of the dorsum almost to the spin- 

 nerets ; in the mid-line a series of five triangular and contiguous black 

 markings, decreasing in size posteriorly, and the most anterior placed 

 just anterior to the middle; the remainder of the dorsum is purplish- 

 gray wdth minute black spots. The sides are finely mottled with pur- 

 ple-gray and brown; the whole venter black spotted laterally with 

 brown, lung-books orange, epigynum deep reddish-brown, spinnerets 

 brown. Chelicera black, labium and maxillce the same but with light 

 tips. Legs above and below distinctly annulated on all joints with 

 black and yellowish. Palpi colored like the legs. 



Color of 6". — Like the ? , except that the whole venter is black (with 

 the exception of the lung-books) ; and that the abdominal dorsum has 

 on each margin a broad band of black extending its entire length, the 

 area between these brands being gray with transverse lines of black 

 in its posterior half. 



