140 OSTAEIOPHTSI. 



specimens collected at Juarez, Kio Grande, by Mr. A. J. Woolman, who determined 

 them as A. imnctatus. In these the occipital process is not notched posteriorly and 

 scarcely reaches the second interneural, but whether this is the case in the adult fish 

 I cannot say. 



4. Amiurus lupus. 



Amiurus lupus (Girard), Jord. & Everm. Bull. U.S. Nat. Mas. xlvii. 189G, p. 137' ; Meek, Publ. 

 Cohimbian Mus., Zool. v. 1904, p. 14". 



Ilab. North America, Texas i. — Mexico, Nuevo Leon - and Tamaulipas -. 



I have examined four specimens from the Rio Soto Marina {Meek}, the largest 

 measuring 150 mm. ; the species attains to a length of 450 mm. 



5. Amiurus pricei. 



Villarius jjricei, Rutter, Proc. Calif. Ac. Sci. (2) vi. 1896, p. 257 ' ; Jord. & Everm. Bull. U.S. 

 Nat. Mus. xlvii. 1900, p. 2799 \ 



Hah. Upper tributaries of the Rio Yaqui in Sonora and Southern Arizona ^ -. 



I have examined one of the types, a specimen measuring 240 mm. in total length. 



6. Amiurus meeki, sp. n. (Tab. XXIII. fig. 5.) 



Amiurus Juried (non Rutter), Meek, Publ. Columbian Mus., Zool. v. 1904, p. 16'. 



Depth of body 5 in the length, length of head 4. Snout If as long as eye, the diameter of which is 5 in the 

 length of head; interorbital width Sj in the length of head. Mouth subterminal ; maxillary barbel 

 extending to basal part of pectoral. 11 gill-rakers on the lower part of the anterior arch. Occipital 

 process obtusely pointed, not quite reaching the second internasal. Dorsal I ; spine short, | the length 

 of head. Anal 21, the free edge convex, the middle rays the longest. Pectoral spine f the length of 

 head, its inner edge with 5 strong serrae ; humeral process extending beyond the middle of pectoral spine. 

 Caudal deeply emarginate, the middle rays | as long as the longest, the lobes rounded. A few indistinct 

 small round dark spots on the sides ; caudal with a dark edge. 



Hab. Mexico, Miiiaca in Chihuahua {Meek ^). (Also recorded by Meek from Lerdo 

 and Durango iu Durango.) 



A single specimen, 105 mm. in total length. 



7. Amiurus australis. 



Aiinunis australis, Meek, Publ. Columbian Mus., Zool. v. 1904, p. 13'. 



Ilah. Mexico, Rio Forlon in Tamaulipas \ Rio Blanco in Vera Cruz ^. 



8. Amiurus mexicanus. 



Amiurus mexicanus, Meek, Publ. Columbian Mus., Zool. v. 1904, p. 15 '. 

 Hab. Mexico, Rio Verde in San Luis Potosi ^ 



