1902.] NATURAL SCIENX'ES OF PlIILADELnirA. 551 



Eyes. — First row almost as bioad as the second, the centres of 

 the lateral eyes of the first row lateral lo the centres of the lateral 

 eyes of the second rows, middle eyes larger and slightly higher. 

 Eyes of second row largest, more than their diameter apart. Third 

 row widest, its eyes nearer to the second row than lo each other. 

 Dorsal eye area a little moi-e than one-sixth the length of the 

 cephalothorax. 



Form. — Cephalothorax very high in front, its posterior declivity 

 very gradual and beginning anteriorly close to the posterior eyes, 

 moderately sloping on the sides. Chelicera more than twice as long 

 as the head is high in front, and with an elongate protuberance at 

 the supero -lateral angle. Sternum louger than broad. Fir^t leg 

 much thicker and stouter than the others. 



Dimensions of 9. — Length of cephalothorax, 10 mm. 



Length of abdomen, 11 mm. 



Length of first leg, 24 mm. 



Length of second leg, 23 mm. 



Length of third leg, 21 mm. 



Length of fourth leg, 27 mm. • 



Colors in Alcohol, ? ?. — Cephalothorax above reddish -brown to 

 almost black, a lighter median band as broad anteriorly as the eye 

 area extending backward and constricted just anterior to the dorsal 

 groove, narrow around this groove, constricted more deeply just 

 behind it and enlarging again to the posterior edge of the thorax ; 

 sides of the head sometimes as light as this band; extreme margin 

 of thorax black. Sternum light -brown to blackish-broAvn. Abdo- 

 men above light to dark -brown, a median darker band extending 

 the whole length of the dorsum, but most distinct on the posterior 

 part, its margins posteriorly deeply pectinate; sides yellowish-brown 

 dor.so-posteriorly and with a black longitudinal band ventro- 

 anteriorly ; venter yellowish-brown to blackish with a more or less 

 distinct darker area from epigyuum lo spinnerets, and a dark 

 semicircle around the spinnerets anteriorly. Epigynum reddish- 

 brown. Superior spinnerets lighter than the inferior. Chelicera 

 deep reddish-brown to black, a reddish prominence at the supeio- 

 lateral angle. Labium and viaxillce reddish-brown with lighter 

 distal ends, labium somewhat darker than the maxiUa'. Legs : 

 First leg darker than second, black in some individuals ; second 

 pair darker above than third and fourth, without annulations, 



