Family XI. Pceciliid^. 139 



fin in the male higher than in the female, and its position slightly more 

 forward; caudal fin slightly truncate; caudal peduncle slender, its 

 least depth if in head. 



Color dark brownish above, lighter below; where the light arid 

 dark colors meet the side more or less speckled; a narrow dark shade 

 ©n middle of caudal peduncle. Length about 3 inches. Named for 

 its discoverer, Dr. W. L. Tower, of the University of Chicago. 



129. Qoodea luitpoldi (Steindachner). 



Characodon luitpoldi Steindachner, Einige Fischarten, Mex., 1895, 

 12, pi. 3, figs. 3~3b.; Lago de Patzcuaro, Michoacan: Garman, 

 Memoirs Mus. Comp. Zool., 1895, 37: Jordan & Evermann, 

 Bull. 47, U. S. Nat. Mus., 1898, 2832: Pellegrin, Bull. Mus. 

 Hist. Nat. Paris, 1901, 205 ; Lago de Zacoalco, Estado de Jalisco. 



Xenendum xaliscone Jordan & Snyder, Bull. U. S. Fish Comm., 

 1900, 128,, fig. 9; Lago de Chapala, Ocotlan, Jalisco: Jordan & 

 Evermann, Bull. 47, U. S. Nat. Mus., 1900, 3153. 



Goodea luitpoldi Meek, Field Col. Mus. Pub. 65, 1902, 101 ; Ocotlan; 

 La Barca; La Palma; Patzcuaro. 



Basin of the Rio Lerma. 



FlG. 42. GOODEA LUITPOLDI (Steindachner). 

 No. 6148 (Xenendian xaliscone), Leland Stanford Jr. University. 



Head 4X to 4.%; depth 3 to 3^; D. 12 or 13; A. 14 or 15; scales 

 17-40 to 42. Body rather robust, much compressed posteriorly; head 

 small; interorbital area slightly convex, if in head; snout 3^; eye 

 3^2 ; origin of dorsal fin midway between tip of caudal and posterior 

 margin of eye, in advance of ventrals; distance from origin of dorsal 

 to base of caudal equals if distance to tip of snout; fins rather large; 

 pectorals 1 y& in head ; ventrals 1 f ; caudal fin slightly rounded ; caudal 

 peduncle deep, much compressed, its least depth 1^ in head. 



Color dark brownish above, lighter below; fins all plain. Length 

 about 8 inches. 



One female 5.15 inches in length from Patzcuaro contained 31 

 young, of about equal length, longest 1.14 inches. There was no 



