320 ^ PROCEEDINGS OF THE ACADEMY OF [March, 



■ Genus PISAURINA Simon, 1898. 

 Pisaurina mira (Walck.). 



Dolomedes mira Walckenaer, 1837. 

 Dolomedes virgatus Idem. 

 Micrommata undata Hentz, 1841, 

 Micrommata serrata Idem, 

 nee Micrommata carolinensis Hentz, 1841. 

 Ocyale undota Hentz, Emerton, 1885. 

 Ocyale undata Hentz, Stone,1890. 

 Pisaurina mira Walck., Simon, 1898. 

 Ocyale undata (Hentz), Montgomery, 1902. 



(Numerous specimens from Pennsylvania, New Jersey, Massachu- 

 setts and Texas.) 



Eyes (9). — First row separated from the clypeal margin by about 

 the diameter of its eyes, broader than the second row, almost straight 

 eyes equidistant, the middle slightly larger. Second row slightly 

 broader than the area of the middle eyes of the first, its eyes not quite 

 their diameter apart, slightly more than their diameter behind the first 

 row and in diameter about 1.3 times the middle eyes of that row. 

 Third row broadest, its eyes on tubercles and as large as those of the 

 second row. Quadrilateral of the middle eyes longer than wide. 



For?n (9). — Cephalothorax in front truncated straight and quite 

 one-half its greatest transverse diameter, the cephalic portion quite 

 well demarcated from the thoracic, about equally high at the posterior 

 eyes and the dorsal groove, the clypeus nearly vertical. Sternum 

 almost as broad as long, pointed behind. Labium widest at the middle, 

 fully as wide as long, not one-half the length of the maxilla^, shghtly 

 convex apically. Posterior spinnerets longest. Legs slender, scopulse 

 not apparent, II, I, IV, III, legs I, II, and IV nearly equal in length. 

 Length of leg IV to cephalothorax as 4.4 : 1. 



Chelicera with 3 pairs of teeth. 



Form (d^). — The eyes are as in the ? , also the form and the relative 

 length of the legs. The palpal tibia has on its outer border one small 

 pointed tooth, little longer than wide. 



Color of Male (in alcohol). — The only adult specimen seen (one from 

 Massachusetts, loaned by Mr. Emerton) had the cephalothoracal pat- 

 tern as in the 9 , but with the median band little darker than the sides. 

 The abdomen above with the narrow green median line on the anterior 

 half as in the ? , but the broad brown band not at all defined, so that 

 the dorsum is pale orange with on each side a row of several pale yellow, 

 short oblique lines, corresponding in position to the margin of the broad 

 brown band in the 9 . The rest of the coloration as in the 9 . 



Nearly mature males from Texas have the dorsal dark bands as 

 distinct as in the female. 



