18 PROCEEDINGS OF THE ACADEMY OF [1880. 



^ Further Description of No. 1. — Snout veiy declivous, dorsal 

 outline in advance of the dorsal rising rapidl}'^, owing to a great 

 accumulation of adipose tissue about the upper part of the bod}^ ; 

 posterior part of dorsal outline regularly descending almost in a 

 straight line ; abdominal outline i-egularly curved. 



Greatest depth a little less than four times ; head, 4| times in 

 the total length; greatest thickness, 1§ in the greatest depth. 

 Eye, 4-|J ; snout, 3, interorbital width (round curve of forehead), 

 2^ times in the length of the head. Caudal peduncle, four times 

 in the greatest depth. Distance from the spinous dorsal to the 

 lateral line, measured along the curve of the side, one-third longer 

 than the longest spine. 



Denticulations of preoperculum rather blunt ; opercvdar spine 

 blunt. 



Teeth somewhat irregular, canines less distinct than in the 



o 



vouno". 



Anal spines short and weak, but stiff, and distinctlj^ recog- 

 nizable as spines ; the first very short, the second about half as 

 long as the first ray. 



Lateral line less conspicuous than in the 3'oung. 



Upper part of the head and along the line of the back approach- 

 ing a chocolate tint. 



Vertical fins darker nearer the margin. No black spot above 

 pectoral axil. 



The whole fish is exceedingly oily, and the abundant exudation 

 of this oil renders it exceedhigly disagreeable to handle. 



Further Description of No. 2. — Dorsal outline from tip of loAver 

 jaw to vertical from posterior margin of eye, much less convex 

 than in the adult ; rise from thence to the origin of the dorsal 

 very slight ; a gradual descent in an almost straight line from 

 thence to the caudal peduncle. Abdominal outline regularly 

 curved to caudal peduncle. Greatest depth, 5g^ ; length of head. 

 4^ times in the total length ; eye, 4 times ; snout, about 3^ times 

 in the length of the head. Interorbital width, measured round 

 its curve, about one-fifth more than the length of the snout, or 

 2f in the length of the head. Caudal peduncle, 3 times in the 

 greatest depth. 



Distance from the spinous dorsal, at its posterior part, to the 

 lateral line, nearl}' 1^ in the length of the longest spine, and less 



