340 PROCEEDINGS OF THE ACADEMY OF [April, 



Cephalothorax yellowish-brown with a dark patch at the union of 

 the head and thorax. From this patch three fine dark lines extend 

 forward, the middle one passing between the posterior median eyes and 

 the lateral ones extending to the posterior lateral eyes. Cephalothorax 

 with narrow black border and obscure radiating lines, eye area darker. 



Posterior eyes in a slightly recurved line, median eyes slightly larger 

 than the lateral eyes and a little nearer each other than to the lateral ; 

 anterior eyes in a slightly procurved line, equidistant, median eyes 

 much smaller than the lateral eyes. Median ocular area about as wdde 

 as long. Clypeus narrower than ocular area, slightly depressed. 

 Chelicerse moderately robust, brownish-yellow streaked with gray, 

 outer margin armed with a row of small teeth, upper margin of furrow 

 armed with five teeth, lower margin with four small ones. 



Sternum very dark yellowish-brown marked with obscure radiating 

 lines. Endites thickened, dark brown at base, tip light. Abdomen 

 dark gray. Legs and palpus yellow brown, coxa? tipped below with 

 dark gray. Egpiynum wrinkled transversely. 



One specimen, Stanford, California. (Mr. P. B. Powell.) 



Erigone tridentata Em. 



This species was doubtfully placed by Simon in Erigone. In a male 

 specimen wdiich I have examined from District of Columbia, the 

 apophysis at the end of the patella of the palpus is more distinct than 

 represented in Emerton's figure. 



The posterior eyes are in a straight line, equidistant and much larger 

 than the intervals between them; anterior eyes in a straight line, equi- 

 distant, median eyes smaller than the lateral eyes. Median ocular 

 area as wide as long. Clypeus narrower than ocular area. 



Erigone tristis Banks. 



? . — The following measurements are taken from a specimen from 

 Interlaken, New York, which was compared with one of the types in the 

 Cornell University collection. 



Legs I II III IV Palpus 



Tar 48 .43 .34 .36 .34 



Met 62 .58 .5 .62 



Tib 67 .6 .46 .72 .24 



Pat 29 .26 .24 .25 .12 



Fern 84 .77 .65 .86 .34 



Posterior eyes in a straight line, equidistant and about equal; eyes 

 larger than intervals between them; anterior eyes in a slightly pro- 

 curved line; median eyes smaller than lateral eyes from which they 



