MAY. 1902. THE ICHTHYOLOGY OF MK\KO MEEK. 121 



Awaous taisiaca Lichinstein. 



La Antigua; Balsas; Puente de Ixtla. 



Gobius parvus, sp. nov. 



Type, No. 3738, F. C. M. Length, 1.95 inches. 



Locality, Rio San Francisco, La Antigua, Vera Cruz, Mexico. 



Head 4; depth 4^; D. vi-u; A. 12; scales 30. Body short, 

 robust; head large; snout blunt, rounded; mouth slightly inferior, 

 little oblique, its gape extending to vertical from pupil; eye small, 

 partly superior; interorbital area narrow, its width little less than 

 half diameter of eye; diameter of the eye 3! in the length of the 

 head; snout 4^ in head; dorsal fins not connected, the spinous 

 dorsal of females low, longest spine a little more than half the 

 length of the head; in the male the dorsal spines are about 4 to | 

 longer than the head, the tips extending to middle of dorsal 

 fin; caudal long and pointed, its length in the female 3^ in the 

 length of the body, in the male 3; pectoral slightly less than length 

 of head; ventral i in head; scales ctenoid. 



Dark olivaceous, mottled with darker; a dark bar on dorsal 

 region from base of posterior half of spinous dorsal; this bar is 

 followed by three others from base of soft <lorsal and one on cau- 

 dal peduncle; 5 or 6 narrow dark. streaks on lower half of sides 

 extending downward and forward to base of anal; 2 black spots 

 at base of caudal fin; dorsal fins of both sexes barred; caudal fin 

 of female with narrow dark bars, none on males; anal fin with 

 a dark margin. 



This species resembles G. stigmaticus. It is more robust and 

 of different coloration. Longest specimen -2\ inches. La 

 Antigua. 



Gobius claytonii, sp. nov. 



Type, No. 3740, F. C. M. Length. 2.30 inches. 



Locality, Rio San Francisco, La Antigua, Vera Cruz, Mexico. 



Head 35; depth 5^; D. vi-i2; A. 13; scales 42-15. Body elon- 

 gate, subterete and tapering to caudal; head moderate: snout very 

 blunt; mouth terminal, broad, its gape horizontal; eyes large, 

 high upon the head and close together; interorbital width less 

 than half diameter of pupil; diameter of eye equals the length of 

 the snout, 3 in length of the head; no scales on dorsal sur- 

 face in front of spinous dorsal; scales ctenoid; breast and region 

 under ventral without scales; spinous dorsal low, longest spine 

 about \ length of the head; caudal fin long and pointed, its mid- 



