16 Field Columbian Museum — Zoology, Vol. V. 



12. Amiurus pricei (Rutter). Bagre de Sonora. 



Villarius pricei Rutter, Proc. Cal. Acad. Sci., 1896, 257; San 

 Bernardino Creek, a tributary of the Rio Yaqui in southern 

 Arizona: Jordan & Evermann, Bull. 47, U. S. Nat. Mus., 

 1900, 2799. 



Amciurus dugesi Bean, Bull. Amer. Mus. Nat. Hist., 1898, 168; 

 Rio Verde, near San Diego, Chihuahua. 



Ameinriis pricei Meek, Field Col. Mus. Pub. 65, 1902, 73; Minaca. 



Streams of the Sierra Madre Mountains in Chihuahua, Sonora 

 and Durango. (Lerdo; Durango.) 



Head 3f; depth 5; D. 1, 6; A. 19. Body elongate, head rather 

 narrow; lower jaw the shorter; interorbital width 2^ in head; eye 

 small, 6 in head; maxillary barbels reaching slightly beyond gill 

 openings; pectoral spine smooth in front, strongly retrose -serrate 

 behind, its length 2% in head; base of anal 1% in head, 4^ in body; 

 caudal fin deeply forked, its inner rays about one-half the length 

 of outer ones. 



Color bluish above, lighter below; a few dark spots on the 

 body; lobes of caudal edged with black. Length probably 2 feet or 

 more. 



All specimens of this species which I have seen were less than 12 

 inches in length. Mr. C. M. Barber, who has traveled extensively 

 in Chihuahua and Sonora, informs me that there is a large catfish in 

 the upper tributaries of the Rio Yaqui. It is quite likely that this is 

 the species, and that it grows to a length of 2 feet or more. 



Subgenus Amiurus Rafinesque. 



13. Amiurus natalis (Le Sueur). Yellow Cat. 



Pimelodus natalis Le Sueur, Mem. Mus., v, 181 9, 154; North 



America. 

 Amciurus natalis Jordan & Evermann, Bull. 47, U. S. Nat. Mus., 



1896, 139. 

 Amiurus natalis autonicusis Jordan, Bull. U. S. Geol. Sur., 



1878, 405; Brownsville, Texas. 

 Northeastern Mexico to the Great Lake region and east to Vir- 

 ginia. 



Head 3K to 4; depth 4 to 5 ; D. 1, 6; A. 24 to 27. Body not 

 much elongate, usually rather deep and chubby; head wide and flatfish, 

 not much longer than broad, the mouth very wide; jaws equal or the 

 lower the shorter; pectoral spine with a few teeth on its inner margin, 

 its length about 2 in head; anal fin very long, its base about 4 in 

 body; caudal fin truncate or slightly notched. 



