558 PROCEEDINGS OF THE ACADEMY OF [AugUSt, 



Eyes. — First row slightly wider than the second, the lateral eyes 

 slightly lower and slightly smaller. Eyes of the second row largest, 

 not quite their diameter apart. Third row widest, its eyes circular 

 and farther from each other than from the second row. All eyes 

 very small for the size of the spider. Dorsal eye area less than 

 one-seventh the length of the cephalothorax. 



jPo?to. —Massive. Cephalothorax highest at the posterior eyes, 

 in front slightly more than one-half its greatest diameter. Sides of 

 head moderately oblique. Length of the chelicera more than 

 twice the height of the head in front. Sternum about as broad as 

 long. Legs stout, thickly covered with hairs. 



Dimensions. — Length of cephalothorax, cJ^, 9.2 mm.; $, 

 12.8 mm. 



Length of abdomen, d^, 8.8 mm. ; 9, 12 mm. 



Length of first leg, cf', 33 mm. ; ? , 32 mm. 



Length of second leg, c?, 31 mm. ; 9, 30.5 mm. 



Length of third leg, cf, 29 mm. ; ?, 28 mm. 



Length of fourth leg, cf, 35 mm. ; 9, 37 mm. 



Color in Alcohol, 9. — Cephalothorax above deep blackish - 

 brown, in smaller individuals reddish-brown, a more or less distinct 

 paler, very narrow median stripe from the middle eyes to the dorsal 

 groove, a similar line on each side of the dorsal groove joining 

 ■with its fellow to form an unpaired one posteriorly ; there is also 

 an indistinct and broader light submarginal band. Sternum 

 blackish or deep brown. Abdomen above black in dark indi- 

 viduals, in light ones with a pale spot at the anterior end of the 

 dorsum; sides somewhat lighter; venter blackish in very dark 

 individuals, yellowish-brown in lighter ones, with generally three 

 longitudinal black bands converging backward toward the spinnerets 

 (each line sometimes a row of spots) and with small black spots. 

 Chelicera thickly covered with black hairs. Labium and maxi/la; 

 black. Legs deep reddish-brown, blackish in dark individuals, in 

 lighter ones clearly annulated on all the joints except the metatarsi, 

 these annulations indistinct but discernible in dark individuals; 

 ventral sui'face of coxa^ black in dark individuals. Pa/j^i colored 

 like the legs. 



The dd" are colored like the lighter 9 9. In one d the black 

 stripes on the venter are very distinct, in another the venter shows 

 only sniall black spots on a yellowish -brown ground. 



