584 PROCEEDINGS OF THE ACADEMY OF [AugUSt, 



Length of second leg, 10 mm. 

 Length of third leg, 11.2 mm. 

 Length of fourth leg, 16 mm. 



Color in Alcohol. — Cephalothorax dark reddish-brown, eye 

 region black with whitish hairs; an indistinctly banded, broad, 

 lighter median band extends from the middle row of eyes back- 

 ward to the end of the thorax, it is as broad anteriorly as the 

 eye area, constricted in front of and again behind the median 

 groove, and narrowed in its posterior portion ; the forehead is lighter 

 than this band ; the extreme margin of the thorax is blackish. 

 Sternum dark reddish-brown. Abdomen above rather indistiuclly 

 marked with blackish and dark buff, as follows: a narrow buff 

 median band anteriorly, to each side of it a narrower buff band, 

 all these on the posterior dorsum breaking into large, ill-defined 

 buff spots that reach to the spinnerets ; at each antero-lateral mar- 

 gin of the dorsum a black spot ; sides brownish, streaked longitudi- 

 nally with narrow buff lines ; venter yellowish-brown and quite 

 sharply delimited from the color of the sides, without distinct mark- 

 ings. Epigynum dark reddish-brown and yellow. Spinnerets 

 yellowish, the supei-ior ones darker. Chelicera clear reddish- 

 brown, labium and maxillce lighter. Legs reddish-brown, distinctly 

 mottled and annulated with buff on all the joints. Palpi colored 

 like the legs. 



Comparisons. — This form is well marked by three peculiar 

 features — the structure of the epig}Tium, the equality in length of 

 the fij-st and third legs (unique, to my knowledge, in this family), 

 and in that the posterior eyes are almost as large as the middle ones. 

 In the length of the legs it resembles a Pardosa, as also in the wide 

 separation of the eyes of the second row. I have decided to class 

 it as a Piraia on the ground of the great length of the superior 

 spinnerets, of the rather close approximation of the second and 

 third rows of eyes, and of the hairiness of the legs. 



Genus OCYALE Sav. and Aud. (PI. XXX, fig. 49.) 

 31. Ocyale undata (Ilentz). 



Micrommata undata Hentz, 1841. 



? Micrommata serrata Hentz, 1841. 



nee Micrommata carolinensis Hentz, 1841. 



Ocyale undata Emerton, 1885. 



Ocyale undata Hentz, Marx, 1889. 



Ocyale undata (Hentz), Stone, 1890. 



Ocyale tindata Heulz, Banks, 1892. 



