1")8 OSTAEIOPHTSI. 



6. ITotropis macrostomus. 



('ijj)rmeUa macrostoma, Giravd, Proc. Ac. Pliilad. 1856, p. 198 ', aud U.S. & Mex. Bound. Surv., 



Fish. p. 54, t. 31. figs. 5-8 (1859) \ 

 Nofropis macrostomus, Jord. & Everm. -Bull. U.S. Nat. Mus. xlvii. 1896, p. 274'; Meek, Publ. 



Columbian Mus., Zool. v. 1904, p. 7.2'. 

 Notropis forhnensis, ]Meek, t. c. p. 70, tig. 20". 



Depth of body nearly equal to the length of head, vrhich is '3'i to ol in the length of the fish. Diameter of 

 eye 2~ to 2| (young) in the length of head. Mouth terminal, oblique : snout pointed. Dorsal 8-9, ■vritl) 

 fi or 7 branched rays ; origin equidistant from tip of snout and base of caudal. Anal .S-9. Ventrals 

 inserted below or a little in advance of the origin of dorsal. 32 to 36 scales in a longitudinal series, in 

 n transverse series from origin of dorsal to lateral line, 3 between lateral line and base of ventral. 

 Lateral Hue complete. Caudal peduncle nearly twice as long as deep. A dark lateral stripe. 



llah. Texas, Devil's River i. — Mexico, Rio San Juan in Nuevo Leon^^j Jiio Forloii 

 in Tamaulipas •"' [MceJc). 



Here described from three specimens, measuring up to 45 mm. in total length, 

 received as N. forlonensis; these are only to be distinguished from small examples 

 of N. lutrensis by the larger eye, and appear to be the young of the species described 

 ;ir:d 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 3| (young) in the length, length of head Sj to 4. Diameter of eye 3| to 4^ in 

 the length of head. Mouth terminal, oblique ; jaws equal anteriorly ; snout obtuse. Dorsal 0, with 

 7 branched rays. Anal S-0, with or 7 branched rays. Vontrals 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. 

 30 to 4U scales iu a longitudinal scrie.s, to 8 in a transverse series from origin of dorsal to lateral line, 

 3i to -H 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. 



llah. Mexico, rivers of Chihuahua and Durango: 



Chihuahua!-'' {Meek); San Andres 3, Jimenez^', and Miiiaca^ in Chihuahua; 

 Santiago Papasquiaro ^ (Meek) and Durango in Durango ^. 



Here described from specimens measuring up to 70 mm. iu total length. 



8. Notropis lutrensis. 



Leuciscus lutrensis, Baird & Girard, Proc. Ac. Pliilad. 1853, p. 391 '. 



Moniana couchi, Girard, U.S. & Mex. Bound. Surv., Fish. p. 57, t. 30. figs. 21-24 (1859) '\ 

 Mimiana rutila, Girard, 1. c. t. 30, ligs. 1-t '. 



Notropis lutrensis, .lord. & Everm. Bull. L-.S. Nut. Mus. xlvii. 1896, p. 271 ' ; Meek, Publ. 

 Columbian Mus., Zool. v. 1904, p. 72 '. 



Depth of body 2j to 3i in the length, length of head 3-! to 4. 4)iameter of eye 4 to 5 iu the length of head. 

 Mouth terminal, oblique ; jaws equal anteriorly ; snout rather obtuse. Dorsal '.I, with 7 liraTicbed rays. 



