Jordan and verman/i. Fishes of North America. 515 



handsomest of the charrs, as yet known only from the Rangeley Lakes in 

 western Maine. Although quite different in appearance, it shows no 

 important structural differences from S. alpinus, and may prove to be a 

 variety of that species. (Oquassa or Oquassoc, name of one of the Range- 

 ley Lakes. ) 



Sahuo oquassa, GiRARD, Proc. Ac. Nat. Sci. Phila., 1854, 262, Oquassa Lake, Maine; GATHER, 



Cat., vi, 154, 1866. 

 S<ilr<'li>ins oqnassa, JORDAN, Proc. U. S. Nat. Mus., i, 1878. 81; JORDAN & GILBERT, Synopsis, 318, 



1883. 



Represented in Arctic America by the scarcely different 

 786a. SALVELIXUS OQUASSA NARESI (GUnther). 



Head 4i; depth 5-6. D. 11; A. 9; B. 11; cceca 42 ; vertebrae 65. Green- 

 ish above, sides silvery or deep red, with very small red spots, much 

 smaller than pupil ; lower fins deep red, with the anterior margins yel- 

 lowish white ; dorsal red posteriorly. Body long and slender ; head 

 rather small, the snout blunt ; the forehead flat; mouth not large, max- 

 illary reaching posterior margin of orbit in male only; teeth very small; 

 teeth on the middle line of the hyoid bone; angle of preopercle much 

 rounded; gill covers with scarcely a trace of the concentric striae for 

 which S. nitidus is distinguished ; pectoral not longer than the head with- 

 out snout; reaching halfway to ventrals; ventrals not to vent ; caudal 

 deeply forked ; scales minute. Length 10 inches. (Giinther.) Lakes of 

 Arctic America, Discovery Bay, and Cumberland Gulf. (Named for 

 Captain George Nares, in charge of the exploring expedition by which it 

 was taken.) 

 Salmo naresi, GUNTHER, Proc. Zool. Soc. London, 1877, 476, plate, fresh-water lakes near 



Discovery Bay. 



Salvelinus naresi, BEAN, Bull. U. S. Nat. Mus., xv, 1879, 135; JORDAN & GILBERT, Synopsis, 318, 

 1883; DRESEL, Proc. U. S. Nat. Mus., 1884, 255; compares naresi with stagnate. In S. naresi, 

 the eye is very much larger, the snout is much shorter, the maxilla does not extend beyond 

 the posterior margin of the eye, and the gill rakers are longer and more numerous. In 

 stagnates, DRESEL says that the gill rakers are 9 + 14 or 15, the longest % eye. 



Closely allied to Salvelinus oquassa, and perhaps a variety either of it 

 or of S. alpinus is 



786b. SALVELINUS OQUASSA MARSTONI,* Garman. 



(THE LAC DE MARBRE TROUT.) 



B. 11, 12; D. 13; A. 13; V. 9; P. 14; vertebras 60. Gill rakers straight, 

 short, sharp, rough, 8-j- 14 on the first arch. The specimen described is 



* Dr. Bean furnishes us the following notes on a specimen, doubtless identical with S. marstoni 

 and formerly referred by us to Salvelinus alpinm, called by him 

 SALVELTNUS ROSSI (No. 37670). 



Township of Decalonnes, Quebec, 70 miles east and 40 miles north of Montreal. Received from 

 Mr. Blackford, February 10, 1886; caught by C. H. Simpson. Length 10^ inches; sex not to be 

 ascertained. Above steel blue. Seven or eight broad parr marks along the sides, very indistinct, 

 and separated by very much narrower yellowish interspaces. Lower half of body pink, over- 

 laying a yellowish ground. Pectoral dusky at base and along most of its upper half, the rest 

 running into orange. Ventrals red, the outer margin milk-white. Anal red, the outer ante- 

 rior margin milk-white. Lower caudal lobe reddish along its lower margin. Eye dusky, min- 

 gled with bronze. Gill rakers about 8 + 12, rather short and feeble, longest about % length 

 of iris. Teeth in jaws and on tongue very strong. Closely related to alpinus, from which it 

 seems to differ in the shape of the subopercle; this bone is twice as long as deep and is con- 

 spicuously striated. The hyoids are well developed, in a long and unusually broad band for the 

 genus Salvelinus. 



