158 OSTARIOPHYSI. 
6. Notropis macrostomus. | 
Cyprinella macrostoma, Girard, Proc. Ac. Philad. 1856, p. 198’, and U.S. & Mex. Bound. Surv., 
Fish. p. 54, t. 31. figs. 5-8 (1859) *. 
Notropis macrostomus, Jord. & Everm. Bull. U.S. Nat. Mus. xlvu. 1896, p. 274°; Meek, Publ. 
Columbian Mus., Zool. v. 1904, p. 72°. 
Notropis forlonensis, Meek, t. c. p. 70, fig. 20°. 
Depth of body nearly equal to the length of head, which is 82 to 34 in the length of the fish. Diameter of 
eye 21 to 23 (young) in the length of head. Mouth terminal, oblique; snout pointed. Dorsal 8-9, with 
6 or 7 branched rays; origin equidistant from tip of snout and base of caudal. Anal 8-9. Ventrals 
inserted below or a little in advance of the origin of dorsal. 32 to 36 scales in a longitudinal series, 6 in 
a transverse series from origin of dorsal to lateral line, 3 between lateral line and base of ventral. 
Lateral line complete. Caudal peduncle nearly twice as long as deep. A dark lateral stripe. 
Hab. Texas, Devil’s River !.—Mexico, Rio San Juan in Nuevo Leon?*; Rio Forlon 
in Tamaulipas ® (Meek). 
Here described from three specimens, measuring up to 45 mm. in total length, 
received as WN. forlonensis; these are only to be distinguished from small examples 
of WV. lutrensis by the larger eye, and appear to be the young of the species described 
and figured by Girard. 
7. Notropis ornatus. 
Codoma ornata, Girard, U.S. & Mex. Bound. Surv., Fish. p. 53, t. 29. figs. 22-25 (1859) *. 
Notropis ornatus, Jord. & Everm. Bull. U.S. Nat. Mus. xlvii. 1896, p. 270 *; Meek, Publ. Columbian 
Mus., Zool. v. 1904, p. 68°. 
Depth of body 3 (adult) to 33 (young) in the length, length of head 3% to 4. Diameter of eye 33 to 44 in 
the length of head. Mouth terminal, oblique; jaws equal anteriorly ; snout obtuse. Dorsal 9, with 
7 branched rays. Anal 8-9, with 6 or 7 branched rays. Ventrals inserted a little in advance of the 
origin of dorsal, which is equidistant from tip of snout and base of caudal or a little nearer the latter. 
36 to 40 scales in a longitudinal series, 6 to 8 in a transverse series from origin of dorsal to lateral line, 
34 to 44 between lateral line and base of ventral fin. Lateral line complete. Caudal peduncle twice as 
long as deep. Males with blackish cross-bars and with the fins dark with pale edges; females and 
young with a lateral stripe and with the fins pale. 
Hab. Mexico, rivers of Chihuahua and Durango: 
Chihuahua ! 23 (Meek) ; San Andres 3, Jimenez *, and Mifiaca? in Chihuahua; 
Santiago Papasquiaro * (Meek) and Durango in Durango 3, 
Here described from specimens measuring up to 70 mm. in total length. 
8. Notropis lutrensis. 
Leuciscus lutrensis, Baird & Girard, Proc. Ac. Philad. 1853, p. 391°. 
Moniana couchi, Girard, U.S. & Mex. Bound. Surv., Fish. p. 57, t. 30. figs. 21-24 (1859) *. 
Moniana rutila, Girard, 1. c. t. 30. figs. 1-4’. 
Notropis lutrensis, Jord. & Everm. Bull. U.S. Nat. Mus. xlvii. 1896, p. 271°; Meek, Publ. 
Columbian Mus., Zool. v. 1904, p. 72”. 
Depth of body 22 to 34 in the length, length of head 32 to 4. Diameter of eye 4 to 5 in the length of head. 
Mouth terminal, oblique ; jaws equal anteriorly ; snout rather obtuse. Dorsal 9, with 7 branched rays. 
