PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 77 



cept three or four large canines in front of the latter). Teeth on colored 

 side of upper jaw very small, numerous. In adults about 33 teeth in 

 the mandible, 43-50 in the intermaxillaries. A single row of six or 

 seven sharp, conical, recurved teeth on each upper pharyngeal ; lower 

 pharyngeals very slender, each armed with a row of about twelve 

 slender, sharp, recurved teeth. Gill-rakers of first branchial arch about 

 half the length of the eyes, flexible, those of the other arches similar, 

 but shorter. Origin of dorsal a little in advance of the anterior margin 

 of the npi^er eye, and immediately above the i)osterior nostril of the 

 blind side ; its anterior rays over the eyes and on the occiput higher 

 than those immediately behind them, but not quite equal to the longest 

 rays of the central portion of the fin, which are from about the thirtieth 

 to the fortieth rays. The first ray is twisted to the left, toward the nos- 

 tril. From the central rays the fin declines regularly to its termination 

 opposite to that of the anal, and distant from the caudal about half the 

 depth of its peduncle. Anal with an acute horizontal spine, its origin 

 opposite the centre of the length of the pectoral, and its longest rays 

 opposite to those of the dorsal. Peduncle of caudal very slightly dilated 

 at the base of that fin, the posterior margin of which is convex, and the 

 principal rays once or twice bifurcate, the first bifurcation at about one- 

 third of their length from the base. Pectoral of colored side with eleven 

 rays, the rays, except the first two, once bifurcate ; that of the blind 

 side nearly equal in size and similarly bifurcate. Ventrals inserted with 

 their posterior axil about half the width of the pectoral base in advance 

 of the anterior axil of that fin ; their rays once or twice bifurcate, and 

 their extremity falling short of the vent. Lateral line very slightly 

 raised above the pectorals, about 107-118 scales between its origin and 

 that of the caudal in a specimen eleven inches long. An accessory 

 lateral line along the base of the dorsal, ending about under the 24th 

 dorsal ray on the colored side, and under the 17th-20th on the blind 

 side. A branch from this accessory line to the main lateral line at back 

 of head ; a line of pores, indistinct in small specimens, more distinct in 

 larger, can be traced fi-om the lateral line across the cheek to the lower 

 margin of the upper eye ; and a little behind the end of this a row of 

 pores branches downwards around the lower eye, ending opposite the 

 posterior margin of the pupil. Scales very small, imbricate, ciliate, ex- 

 tending over head and giU-covers; snout and lower jaw scaleless. Free 

 end of each scale truncate. A single row of small scales along each ray 

 of the dorsal and anal on the colored side, except on about the first 

 third of the dorsal and the first two or three rays of the anal. Caudal 

 covered with small ciliated scales on the colored side almost to the tip 

 of the rays, and with smooth scales on the colored side. Scales of blind 

 side smooth, a few scales on the bases of the central rays of the dorsal 

 and anal on this side. Color of right side ash-gray, interspersed with 

 crowded black dots just large enough to be perceptible with the naked 

 eye ; numerous black points on the exposed part of each scale. When 



