234 bulletin: museum of comparative zoology. 



toward eyes; lateral margins dusky. Sternum dusky testaceous, 

 more blackish caudad. Labium blackish; endites paler, testaceous, 

 Legs testaceous; the femora with three wide dusky annuli; patellae 

 dusky around distal end and tibiae with three dark rings, the annuli 

 of all joints most distinct on anterior legs. Abdomen somewhat pale 

 testaceous over sides; above a narrow, solid black, foliate mark over 

 entire length, the edges wavy and bordered on each side by a distinct 

 white line; venter with a black longitudinal stripe over entire length 

 which narrows somewhat from anterior end caudad. 



Posterior row of eyes straight; median eyes a little smaller than 

 the laterals diameters about as 7:8), a little less than their diameter 

 apart and a little more than their diameter from the laterals. Lateral 

 eyes contiguous, subequal. Area of median eyes of nearly equal 

 length and breadth ; of same width in front as behind. Anterior row 

 of eyes straight; median eyes their diameter apart, considerably 

 nearer to the laterals (near their radius). Clypeus of nearly same 

 width as area of median eyes, but not much more than half as wide 

 as the length of the chelicerae. 



Labium about three fourths as long as wide; the distal margin 

 convex. 



Sternum not quite five sixths as wide as long; process between 

 posterior coxae distally rounded, not acute. 



Female. Length, 5.2 mm. Length of cephalothorax, 2 mm.; 

 width, L6 mm. 



Locality. — Sorontoy, 7,000 feet, September. (Type, M. C. Z. 190, 

 one female). 



LINYPHIIDAE. 



Erigone taibo,^ sp. nov. 

 Plate 17, fig. 5. 



Carapace, sternum, mouthparts, palpi, and legs brownish black. 

 Abdomen yellowish white; epigynum and spinnerets blackish. 



Posterior row of eyes a little recurved; eyes equidistant, the medians 

 one and two thirds their diameter apart. Lateral eyes contiguous, 

 the anterior the larger. Area of median eyes wider behind than in 

 front in the ratio 10:7; about equal in length and greatest width. 



' Gosiute laibo, a white person. 



