SALMONIDJE. 117 



it proceeds straight to the tail. Head flattened between the eyes. 

 Snout protruded, and in aged individuals with a tubercular enlarge- 

 ment on its extremity. Eyes large ; the antero-posterior diameter 

 of the orbits 1.5, and their distance apart 2.5 ; nostrils contigu- 

 ous, patent ; the anterior vertically oval, the posterior smaller and 

 rounded. Under jaw shortest, and received into a cavity of the 

 upper. The transverse membrane over the roof of the mouth exceed- 

 ingly tough and thick ; the numerous curved teeth in the jaws partly 

 concealed by a loose fleshy membrane. Tongue, long, narrow and 

 thick, with a series of teeth along the central furrow. Many series 

 of acute teeth along the vomer and on the palatines. 



" The first dorsal fin with its upper margin rounded, sub-triangular, 

 arising somewhat nearer the snout than the extremity of the caudal 

 rays, higher than long, measuring 4.5 in height, and 4.0 along the 

 base. It is composed of fourteen rays, the first two short, and imbed- 

 ded in the flesh ; the fourth and fifth rays longest. The adipose fin 

 1.0 long, rounded at the end, scarcely narrowed at the base, an inch 

 long, and placed over the end of the anal fin. Pectoral fins broad 

 and pointed, five inches long, and arising slightly behind a line drawn 

 from the upper posterior angle of the opercle. It is composed of 

 fourteen rays. The ventral fins, placed nearly under the centre of 

 the dorsal fin, composed of nine rays, and furnished with a thick 

 axillary plate. Anal fin quadrate ; its extreme height 4.4, and its 

 base 3.0 ; composed of twelve robust rays. Caudal fin nine inches in 

 extent from tip to tip, furcate, with a sinuous margin. 



u Color from a living specimen. All the upper portion of the head 

 and body bluish black. Sides of the head, base of the first dorsal, of 

 the caudal and anal fins, with numerous rounded crowded irregular 

 light spots. On the base of the dorsal and caudal, the spots are 

 oblong light greenish ; chin brownish bronze ; pupils black ; irides 

 Salmon color. Tips of the lower fins slightly tinged with red. 

 " Length 31.3 ; of the head 7.3. Weight fifteen pounds. 

 " Fin rays, D. 14.0 ; P. 14 ; V. 9 ; A. 12 ; C. 21f . 

 " This is the well-known Lake Salmon, Lake Trout, or Salmon 

 Trout of the State of New York. Among the thirteen species or 

 varieties of Lake Trout, or Lake Salmon, so beautifully illustrated 

 by Richardson, I cannot find this species described. It appears more 



