58 FIELD COLUMBIAN MUSEUM ZOOLOGY, VOL. V. 



49. Cochlognathus ornatus Baird & Girard. HARD-JAW MINNOW. 

 Cochlognathus ornatus Baird & Girard, Proc. Acad. Nat. Sci. Phila., 



1854, 158; Brownsville, Texas: Girard, Proc. Acad. Sci. Phila., 

 1856, 181; Brownsville, Texas: Girard, Mex: Bd. Sur., 46, 

 pi. xxv, figs. 12-17, 1859; Brownsville, Texas: Giinther, Cat., 

 vn, 187, 1868: Jordan & Evermann, Bull. 47, U. S. Nat. Mus., 

 1896, 252. 



Head 4; depth 4^; D. 8; A. 6; scales 40. Body moderately elon- 

 gate; head long; dorsal fin over ventrals, rather high; caudal fin short. 

 Color dusky, yellowish; a dusky lateral band; dorsal fin with a 

 black spot near the base in front and a dusky blotch behind ; caudal 

 fin with a dusky median band, preceded and followed by a pale 

 area; snout tuberculate in the spring during the breeding season. 

 Length about three inches. Known only from the type locality. 



25. Falcula Jordan & Snyder. 



Falcula Jordan & Snyder, Bull. U. S. Fish Comm., 1899, 124. 

 (Type, Falcula chapalce Jordan & Snyder.) 



Body elongate, compressed; caudal peduncle slender; mouth 

 large; lips thin, premaxillary protractile; no barbels; teeth 4-4, 

 hooked, with grinding surface; gill rakers few, short, far apart; alimen- 

 tary canal short; peritoneum light; fins high. 



50. Falcula chapala? Jordan & Snyder. SARDINA. 



Falcula chapala Jordan & Snyder, Bull. U. S. Fish Comm., 1900, 

 125, fig. 6; Lago de Chapala, Jalisco: Jordan & Evermann, 

 Bull. 47, U. S. Nat. Mus., 1900, 3143: Meek, Field Col. Mus. 

 Pub. 65, 1902, 85; Ocotlan; La Palma; La Barca 



Basin of the Rio Lerma. 



FlG. 12. FALCULA CHAPAL/E Jordan & Snyder. 

 No. 6152, Leland Stanford Jr. University. 



Head 3^ to 4; depth 4 to 4^; D. 8; A. 8; scales 8-50-5. Body 

 elongate, compressed, back little arched; head long, narrowed for- 



