190S.] NATURAL SCIENCES OF PHILADELPHIA. 181 



second row ; anterior lateral eyes twice their diameter or a little more 

 from the front margin of clypeus, their diameter from eyes of second 

 row; eyes of second row one and one-fourth times their diameter 

 apart; quadrangle of posterior eyes longer behind than in front in 

 ratio of 9 : 1, considerably more than one-fourth as long as the 

 cephalothorax (1 :3.5). 



Spines of tibiae of legs and clothing of tarsi as usual. 

 Epigi/num in shape roughly like a very wide-necked decanter, though 

 more angular in outline; posterior foveas not sharply limited, the 

 lateral furrows gradually narrowing cephalad to a mere line at the 

 anterior end, the sides bulging in correspondingly on each side; guide 

 somewhat anchor-shaped with the transverse pieces relatively short 

 and stout, the median piece with lateral plates along entire length, these 

 continuously narrowing cephalad until the septum at its anterior end 

 is very narrow. (PI. XIII, fig. 9 .) 



Total length, 5 mm. Length of cephalothorax, 2.5 mm.; width, 

 1.8 mm. 

 Length of leg I, 7.2 mm. ; tib. + pat., 2.6 mm. ; met., 1.5 mm. . 

 Length of leg II, 7 mm. 

 Length of leg III, 6.9 mm. 



Length of leg IV, 10.6 mm. ; tib. + pat., 3.2 mm. ; met., 3.3 mm. 

 Ma/f?.— Considerably smaller than female. Legs yellow, entirely 

 without rings or markings excepting the femora of the first two pairs 

 which are black on the basal half, the black more or less interrupted 

 by yellow laterally and below. Palpi entirely black, clothed with 

 dense black hair. Median stripe of cephalothorax obscure. Abdomen 

 entirely black without light markings in the tegument, but in life with a 

 row of white spots formed of bunches of hair on each side behind, with 

 narrow transverse lines of white hair extending between the spots; 

 venter yellow with a dark median mark more or less dilated in front 

 of the spinnerets, clothed with white hair. Chelicerce black except 

 along disto-mesal side, clothed with deep brown pubescence except 

 distally where it is gray and longer. 



Bulb of palpal organ very convex, protruding conspicuously from 

 alveolus ; scopus similar in form to that of milvina, but the basal spur 

 cylindrical and relatively longer than in that species ; there are consider- 

 able differences in the conductors of these two species. 



Total length, 4.1 mm. Length of cephalothorax, 2.1 nun.; width, 

 1.3 mm. 



Length of leg I, 5.2 mm. 

 Length of leg II, 5 mm. 



