Family XXII. Gobiid^e. 233 



6 or 7 dark cross-bars; ventral, anal, and pectorals pale. Length 

 about 4 inches. (Evermann.) 



222. Chonophorus taiasica (Lichtenstein). Aboma de Rio; La 



Pujeque; Muchura. 

 Gobius taiasica Lichtenstein, Berl. Abhandl., 1822, 166; Brazil. 

 Gobius dolichocephalns Cope, Trans. Amer. Philos. Soc. Phila., 



1869, 403; near Orizaba, Mexico. 



Aivaous taiasica Jordan, Proc. Cal. Acad. Sci., 1895, 494- Ri° 



Presidio, Mazatlan; San Jose del Cabo, Lower California: 



Jordan & Evermann, Bull. 47, U. S. Nat. Mus., 1898, 2236: 



Rutter, Proc. Cal. Acad. Sci., 1896, 265 ; Rio San Jose, San Jose 



del Cabo, Lower California : Jordan & Snyder, Bull. U.S. Fish 



Comm., 1900, 147 ; Rio Ixtla, Puente de Ixtla: Meek, Field Col. 



Mus. Pub. 65, 1902, 121 ; La Antigua; Balsas; Puente de Ixtla. 



Streams of the West Indies and of the American continent from 



Vera Cruz and Mazatlan to Panama and Brazil. It does not occur 



on the Mexican plateau. (Cuautla; Valles; San Francisco; Perez.) 



Head 3^; depth 5^; D. vi-ii; A. 11; scales 60 to 75. Body 

 elongate, not much compressed; snout much decurved; interorbital 

 very narrow, somewhat convex, its width less than diameter of the 

 eye; preorbital deep, about 3 in head; mouth large; premaxillary 

 scarcely reaching vertical from anterior margin of orbit; teeth small, 

 in bands on jaws; gill membranes broadly united to the isthmus; 

 branchiostegals 4; origin of dorsal to tip of snout 2% in body; pec- 

 torals long, 1 V3 in head; scales small, ctenoid, those on anterior X °f 

 body much smaller than on rest of the body; caudal fin rounded. 



Color olivaceous, with irregular dark blotches along middle of the 

 sides; rest of body above reticulate with darker; lower third of body 

 nearly plain ; dorsal fins and caudal barred ; other fins plain ; two blue 

 streaks from eye to maxillary and two or more small ones on cheek. 

 Length about 12 inches. 



A food fish of considerable local importance. 



223. Chonophorus mexicanus (Giinther). 



Gobius mexicanus Giinther, Cat., in, 61, 1861; Mexico. 



Awaous mexicanus Jordan & Evermann, Bull. 47, U. S. Nat. Mus., 

 1898, 2237. 



Distribution not known. 



Head 4; depth 6f; D. vi-i ; A. 11; scales 24-76 to 82. Head as 

 broad as deep, fiat above ; snout elongate, upper profile oblique ; mouth 

 horizontal, lower jaw included; maxillary reaching to below anterior 

 margin of the eye; teeth of outer series enlarged; scales small, those 



