Family XI. Pceciliid^;. 119 



cc. Dorsal fin slightly behind origin of the anal, page 



about midway between tip of caudal fin and 

 opercle 

 e. Head 3^3 ; dorsal rays 10 or n; anal rays 



13 to 16; scales 1 2-3 5 lateralis 121 



ee. Head 3 to 3^-; dorsal rays 12; anal ravs 12 



or 13; scales 11 or 12-32 garmani 121 



bb. Scales small, 50 in the lateral series, origin of 

 dorsal fin midway between base of caudal 

 and base of pectoral, anal fin inserted below 

 seventh ray of dorsal furcidens 122 



106. Characodon multiradiatus sp. nov. 



Type, No. 4523, F. C. M., 1.50 inches in length; Lerma, Mexico. 



Girardinichthys innominatus Evermann & Goldsborough, Bull. 

 U. S. Fish Comm., 1902, 149; Lago de Lerma, Mexico. 



Basin of the Rio Lerma. (Lerma.) 



Head 3^ to 4; depth 2^ to $%; D. 26 to 30; A. 26 to 30; scales 

 about 45. Body moderately elongate, somewhat compressed; head 

 small, mouth moderate; jaws with incisor-like bicuspid teeth; diameter 

 of eye slightly greater than the length of the snout, 3^ in head; dorsal 

 fin long, its base equaling length of head (?) to l / 2 longer (S) ; origin 

 of dorsal in advance of anal, midway between base of caudal and 

 eye (?) to nearer tip of snout than base of caudal ($) ; pectoral fin 

 small, its length i>2 in head; ventral 2 in head; gill rakers short, 

 less than diameter of the eye, about 15 on first gill arch. 



Color dark olivaceous, the darker markings with a tendency to 

 form crossbars ; a dark blotch on side above space between ventral and 

 anal fins; margins of median fins on male black. Length about 1.80 

 inches. 



This species in general form and color resembles Girardinichthys 

 innominatus Bleeker, with which it has been previously identified. 



107. Characodon eiseni Rutter. 



Chara'odon eiseni Rutter, Proc. Cal. Acad. Sci., 1896, 266; Rio 

 Santiago, Tepic: Jordan & Evermann, Bull. 47, U. S. Nat. 

 Mus., 1898, 2831; Tepic. 

 Lowland streams of Jalisco and Tepic. 



Head 3%; depth 2> T A\ D- u to 13; A. 13; scales 12-30 to 32. Body 

 rather deep, somewhat compressed; mouth almost vertical when 

 closed; anterior teeth bicuspid, the villi form teeth not developed; 

 about 9 teeth in the upper jaw and 14 in the lower; eye 3 in head; in- 

 sertion of the dorsal in the middle of the total length; origin of anal 



