THE CYPRINODONTS. 103 



B. 6; D. 14 (13-15) ; A. 12-11 j V. 6 ; P. 16-17; LI. 41-48 ; Ltr. 15 

 (14-16); Vert. 17 + 18. 



Form more elongate than that of either F. heieroditiis or F. maj'alis, out- 

 line of back straighter, body less compressed. Shape of bead intermediate 

 between these specie.s, length less than depth of body, three and one half 

 times in the distance from snout to caudal; crown flattened. Snout medium, 

 little longer than the eye. Mouth moderate ; lower jaw longer, not so much 

 turned upward as in F. majalis, symphysis firm ; upper shorter, protractile. 

 Eye large, less than one and one half times in the interorbital space, about 

 two sevenths of head. Teeth conical ; outer series larger, hooked ; pharyn- 

 geal with a shoulder, some of the median resembling molars. Origin of 

 dorsal a little in front of midway from snout to tip of caudal, nearly half of 

 the base of the fin being forward of the anal. Oviduct of females not much 

 prolonged upon the first anal ray, but appearing rather as if a fold at each 

 side of its base. Caudal pedicel moderately slender ; fin not as long as 

 head, truncate. 



Olive brown to very light and translucent, darker on the back, lighter 

 below ; with numerous narrow vertical bars of brown on the flanks, separ- 

 ated by spaces silvery to yellowish or pinkish. The bars are variable in 

 number, size, and distinctness ; on some the brown is most extensive and the 

 light color is reduced to narrow streaks ; on others the silver has taken the 

 place of the brown to a great extent. Translucent or very light colored 

 specimens are not very rare, the condition being in some cases individual 

 and in others perhaps induced by the character of the water. An occasional 

 one has black specks scattered over the entire body ; these seem more notice- 

 able where the bands are obsolescent. The brown is made up of puncticu- 

 lations ; exceptionally these are ranged around the edges of the scales. 

 Keaches a length of three and a half inches or more. 



Maine to the Mississippi Valley inclusive, and southward to the Carolinas. 



Pundulus Kansae. 



Plate 11. Fig. 10, teeth. 



lundulus zebriniis Gilb., 1884, B. Wash. Lab., I, 15,-1889, B. 9 TYasli. Lab., 39, 40; Crag., 1885, 

 B, Wash. Lab., I, 110; Everm. & F,, 1S85,P. PliU. Ac, 412; Jor.,1885, Rep. U. S. F.Com., 48,-1887, 

 R. U. S. F. Com., 836, — 1891, B. U. S. F. Com., IX, 17; Hay, 1888, P. U. S. Mus., X, 249, 250, 252; 

 Everm. & K., 1894, B. U. S. F. Com., 1892, pi. 23, fig. 2. 



B. 5; D. 15-17; A. 13-15; P. 16-17; LI. 60-65; Ltr. 18-20; Vert. 

 15 + 21. 



