PEOCEEDIXGS OF UNITED STATES NATIONAL MUSEUM. 155 



tance. Jaws equal. The maxilla does not quite reach to below the 

 auterior margin of the pupil, and is one-third as long as the head. The 

 mandible extends to below the middle of the eye and is contained 10 

 times in the total length to base of middle caudal rays. A tentacle 

 above each orbit. Teeth in the jaws and in the vomer; none on the 

 palatine bones. 



The spinous dorsal originates immediately over the base of the pec- 

 toral; its longest spine is one-eleventh as long as the fish without the 

 caudal. The longest ray of the second dorsal equals the length of the 

 post-orbital part of the head. The dorsals are separated by a deep 

 notch, immediately under which the anal originates. 



The length of the anal base equals one-third of totitl length without 

 the caudal. The vent is equidistant from the tip of the snout and the 

 base of the middle caudal rays. 



The middle caudal rays are only § as long as the longest rays, the 

 caudal being decidedly forked. 



The distance of the pectoral from tip of snout equals one-fourth of 

 the total length to base of middle caudal rays ; the pectoral does not 

 quite reach to the vent; its length equals that of the head including the 

 oi)ercular flap. 



The disti nee of the ventral from the snout is slightly more than twice 

 the length of the ventral, which is one seventh of the total length to 

 base of middle caudal rays. 



There are 6 lateral lines on each side, the uppermost of which meets 

 its fellow of the opposite side in front of the dorsal, is continued for- 

 ward on the nape by a single short line, runs backwards close to the 

 dorsal, base "and ends at about the beginning of the last third of the soft - 

 dorsal. The second begins on the nape, is one-half as far from the up- 

 permost as it is from the third, and extends to the caudal. The third 

 begins at the extreme upper limit of the gill-opening, curves very grad- 

 ually to follow the dorsal outline until it reaches the end of the second 

 dorsal, whence it runs straight out on the caudal. The fourth begins a 

 little above the j^ectoral, curves very slightly downward and disappears 

 about the middle of the body; it is not so well developed as the rest. 

 The fifth originates close under the pectoral, near the gill-opening, 

 passes above the ventral and on the lower part of the side of the body, 

 ending at about the beginning of the last third of the anal. The sixth 

 meets its fellow of the opposite side a little behind the ventral base (a 

 single line extending forward from this junction on the median line of 

 the belly as far as the throat) and runs backward close to the base of the 

 anal fin, ending on the caudal. The scales are everywhere very rough. 



Colors: Each of the dorsals has 3 black blotches, smaller than the 

 eye, resembling bands but not extending to the bases of the fins. The 

 l)ectorals, ventrals, and anal are uniform yellowish white. The body is 

 light brown above and silvery or golden on the sides and lower parts. 



