AMERICAN GOBIID.E AND CALLIONYMID^. 67 



bars from dorsal to middle of sides, wliich, close under 

 dorsal fins, are formed of two blackish dots; eight black 

 dots along lateral line, the last being at base of caudal; 

 fins all smutty, the pectoral lightest, white on its anterior 

 half, two dusky spots at its base; opercle ashy; a light bar 

 at base of caudal; iris blackish blue, a short straight streak 

 of same color from eye to upper lip; an irregular bluish 

 mark on cheeks formed of punctulations closely crowded. 



Eelated to Gobius -paradoxus Giinther, from which this 

 species difiers in the size of the mouth, the greater width of 

 the head, the arrangement and number of scales, the first 

 dorsal fin, the color, and other minor characters. 



The specimen was dredged. Its exact locality is not 

 known. 



43. Gobius paradoxus Gunther. Panama. 



44. Gobius seminudus Giinther. Panama. 



XIII. CHONOrHORUS Poey. 



45. Chonophorus flavus (Guv. & Val.) Brazil. 



The Museum contains two specimens (No. 13,076) from 

 Bahia, collected by Professor Agassiz, and one (No. 13,- 

 094) from the Rio Doce, which may be referred to this 

 species ? Our description is taken from the specimens from 

 Bahia. 



D. VI— 12; A. 11; Scales 55. 



Body very elongate, depth 6 J in length; mouth horizon- 

 tal, lower jaw flat; teeth in two series in upper jaw, the 

 outer ones enlarged; in the lower jaw the teeth are in a 

 band. 



Color yellow, with a row of faint ocellated spots along 

 middle of sides; dorsal and caudal fins fainth^ barred; lines ra- 

 diating from eye; a line along opercle and half way across 

 pectoral; all the markings obscure. 



