NORTHWESTERN SOUTH AMERICA. 685 



14. Sicydium hildebrandi spec. nov. 



7466 C, type, 137 mm.; 13852, I., paratype, 114 mm. Cisnero, 

 Rio Dagua. Eigenmann. 



Head 5.25 ; depth 5.5 ; D. VI, 11 ; A. 11 ; about 70 scales between 

 pectoral and caudal, about 20 between dorsal and anal ; eye 6 in the 

 length of the head, interocular 2.5. 



Head very blunt, body cylindrical, caudal peduncle compressed ; 

 scales in the middle line extending to a point a little in advance of 

 the upper angle of the gill-opening; belly scaled; pectorals large, a 

 little longer than head ; all but the first dorsal spines produced, the 

 second, third and fourth of nearly equal extent, reaching the fourth 

 to the seventh dorsal ray; dorsal rays increasing in height to the 

 penultimate which reaches the caudal and is one third longer than 

 the head ; anal similar to the dorsal but lower, its origin equidistant 

 from eye and caudal; horizontal teeth of the lower jaw entirely con- 

 cealed, teeth of the upper jaw truncate. 



Scales of sides gray at margin and with a submarginal dark 

 crescent ; dorsals dark with numerous' light spots, circular near base 

 and middle, becoming elongate or vermiform toward the tip; caudal 

 and pectoral dusky; anal dusky with a darker border. 



Named for Mr. S. F. Hildebrand, in recognition of his work 

 with the fresh-water fishes of Panama, and for his discovery of 

 several new genera of Gobiidas in Panama. 



15. Gobius (Ctenogobius) daguae spec. nov. 



7481 C, type, 90 mm. to base of caudal, about 133 to end of caudal, 

 paratypes, 7482 C. ; 13863 I., three, 65-103 mm. Mouth of 

 Rio Dagua. Eigenmann. 



Allied to Gobius holeosoma and enccEonms. 



Head 4-4.2; depth 5.25-6; D. VI-I, 12; A. I, 12; scales 31-34; 

 eye 4 in the head, interocular 6, preorbital very little wider than the 

 eye ; head as well as body compressed ; heaviest at the ventrals, 

 tapering regularly to the caudal, snout very blunt, narrow; width 

 of the head but little, if any more than half its length; depth of the 

 head 1.5 in its length; mouth low, terminal, horizontal; lips very 



PROC. AMER. PHIL. SOC, VOL. LVI, SS, JANUARY 12, IQlS. 



