FAMILY XI. PCECILIID.E. 125 



bb. Scales 24 or 25 in the lateral series; dorsal PAGE 



rays 9 to n ; anal 10 or 1 1 macularis 126 



aa. Color markings on side with a tendency to form 



longitudinal bands latijasciatus 126 



113. Cyprinodon eximius Girard. 



Cyprinodon eximius Girard, Proc. Acad. Nat. Sci. Phila., 1859, 158: 

 Rio Chihuahua, Chihuahua: Woolman, Bull U. S. Fish Coinm.. 

 1894, 59, Rio Chihuahua, Chihuahua: Jordan & Evermann, 

 Bull. 47, U. S. Nat. Mus., 1896, 673 ; Rio Chihuahua, Chihuahua. 

 Cyprinodon elegant Woolman, Bull. U. S. Fish Comm., 1894, 59; 

 Rio Chihuahua, Chihuahua: Garman, Memoirs, Mus. Comp. 

 Zool., 1895, 23; Rio Grande; Rio Chihuahua: Jordan & Sny- 

 der. Bull. U. S Fish Comm., 1900, 127; lagoons near Tam- 

 pico: Meek, Field Col. Mus. Pub. 65, 1902, 97 (in part); Chihua- 

 hua, San Andres; Santa Rosalia; Jimenez; San Jose; Ahumada. 

 North, central, and northeastern Mexico, from the Rio Panuco to 

 the Rio Grande. (Sauz.) 



Head 3^; depth 2^/3 ; D. 8 or 9; A. 9 or 10; scales 11-28. Body 

 deep, compressed; head small; snout bluntish; interorbital convex, 

 2)^ in head; diameter of eye equals snout 3^ in head; origin of dorsal 

 fin midway between base of caudal and anterior margin of the orbit; 

 base of dorsal fin i^ in head, pectoral fin 1^3 in head; ventral fin 2^ ; 

 caudal fin truncate; least depth of caudal peduncle i ^ in head. 

 Color of adult male dark brownish; sides with about 5 indistinct 

 dark bars, much wider than the inter-spacing; dorsal and anal fins 

 nearly white; caudal light, much variegated with black and with a 

 broad dark margin; tips of anal and pectoral black; females lighter, 

 variegated with darker with a tendency to form vertical bars , last 

 rays of dorsal with a black blotch ; caudal fin of female variegated or 

 speckled with black. Length about 2.% inches. 

 Spawning time in July. 



114. Cyprinodon elegans Baird Girard. 



Cyprinodon eh^ans Baird & Girard, Proc. Acad. Nat. Sci. Phila., 

 I 853, 3 8 9; Comanche Spring, Texas: Girard, Mex. Bd. Sur., 

 66, pi. xxxvii, figs. 1-7, 1859; Comanche Spring, Texas: Jordan 

 & Evermann, Bull. 47, U. S. Nat. Mus., 1896, 675: Evermann 

 & Goldsborough, Bull. U. S. Fish Comm., 1902, 149; Lago de 

 Santa Maria, Chihuahua: Meek, Field Col. Mus. Pub. 65', 1902, 

 97 (in part); Colonia Juarez; Guzman; Santa Maria; Minaca. 



Cyprinodon eximius Bean, Bull. Amer. Mus. Nat. Hist., 1898, 168; 

 San Diego, Chihuahua. 



