1905.] NATURAL SCIENCES OF PHILADELPHIA. 339 



Gongylidiellum pallidum Em. 



d" Legs I II III IV 



Tar 22 .2 .... .22 



Met 22 .2 .... .24 



Tib 29 .26 .19 .34 



Pat 14 .14 .14 .14 



Fern 41 .34 .29 .38 



? Tar 19 .19 .17 .18 



Met 19 .19 .17 .22 



Tib 26 .24 .19 .31 



Pat 17 .16 .14 .14 



Fern 34 .31 .26 ..36 



The arrangement of the eyes is about the same in both sexes. Pos- 

 terior eyes in a shghtly procurved line, equal, the median eyes separated 

 from each other by their radius and from the lateral by one-half as 

 much; anterior eyes in a straight line, all subcontiguous, the median 

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

 as long. Clypeus narrower than ocular area. 



ERIGONE. 

 Erigone persimilis Cambr. 



(?. — Posterior eyes in a straight line, median eyes a little smaller 

 than the lateral eyes and separated from them by their diameter and 

 from each other by a little smaller interval ; anterior eyes in a slightly 

 procurved line, equidistant and nearly equal, the median eyes being 

 only very little smaller than the lateral eyes. Median ocular area a 

 little wider tiian long. Clypeus wider than ocular area. 



? . — Cephalothorax darker than in the male, margin armed with a 

 series of veiy small teeth, head less elevated than in male. Posterior 

 eyes in a straight line, equal, median eyes a little nearer to the lateral; 

 eyes than to each other ; anterior eyes in a very slightly procurved line, 

 median eyes a little smaller than lateral eyes, one-half as far from each 

 other as from the lateral eyes. Clypeus narrower than the ocular area. 

 The row of small teeth on the outside of the chelicerse extends only 

 two-thirds the length of segment. The sternum, legs and endites are all 

 darker than in the male. Epigynum consists of a broad plate, divided 

 into two rounded lobes behind by a broad and shallow notch in front 

 of which there is a crescentic pit. 



These two specimens were taken together at Sheepshead Bay, New 

 York, June or July, 1903. 

 Erigone plicita n. sp. (PI. XXIX, fig. 7.) 



9. — Length about 1.45 mm. Cephalothorax, long .82 mm., wide 

 .55 mm. 



