SUCKLEY MONOGRAPH OF THE GENUS SALMO. 123 



When we speak of color of the ray, we mean of the integument or 

 membrane covering- it. 



25. SALMO FONTINALIS, Mitchill. 



COMMON TEOUT ; BROOK TROUT OF THE ATLANTIC COAST OF NORTH 



AiVIERICA. 



Syn. — Sahno fonUnaUs, Mitchill, Trans. Lit. & Phil. Soc. of N. Y., 1, p. 435 ; — 

 Rich. F. B. A. iii, p. 176 ; — Kirtlaxd, Report, Zool. Ohio, pp. 169-194 ; — 

 Thompson, Hist. Vermout ;— DeKay, N. H. State of N. Y., Fishes, p. 235 :— 

 Aykes, Bost. Journ. N. H. iv, ]). 273 ; — Kirtlaxd, Bost. Jouru. N. H. iv, 

 p. 305 ; — Valexciexxes, H. N. des Poissous, xxi, p. 266, 1848 ; — Stoker, 

 Synopsis ; — Bigelow, Bost. Jonrn., vi, p. 49 ; — Forsyth, Bost. .Journ., v, 

 p. 412; — Herbert, ("Frank Forrester,) "Fish and Fishing;" also, "Sup- 

 plement to the same ;" — Gill, Cat. Fishes E. Coast N. A. 



Salmo nigrescer^, Raf. Ichth, Ohien, p. 45. 



Salmo eri/fhrogaster, DeKay, Report, p. 236. — (Red-bellied variety.) 



Balone fontinalis, DeKay, Rep. Fishes, p. 244, 1842. (A species founded on 

 the young.) 



Salmo canadensis, Ham. Smith, " Grif. Cuv., vol. 10, p. 474, PI. 41." — De Kay, 

 Rep., p. 243.— Storer Synop., p. 197. 



SaJmo fario, Smith, Fishes of Massachusetts, p. 141. 



Sp. Ch. — [Mostly condensed from DeKay.] Body oblong, compressed ; 

 back, broad and rounded; head, sloping nearly symmetrically above and 

 below; nostrils double; labials, intermaxillaries and lower maxillaries 

 armed with minute teeth ; tongue with two rows of from four to six 

 teeth; vomer, with six to eight teeth, in a single row. Br. 12, 12. 



Colors. — Above ^dth irregular dark markings on a horn-colored ground, 

 which, in freshly caught specimens, give bluish and greenish metallic 

 reflections; sides lighter, merging into silvery- white on the abdomen? 

 but showing much red in the spawning season; upper part of the head 

 dark greenish-brown, with obscure mottlings ; vermilion dots and large 

 yellow spots in the vicinity of the lateral line. The pectorals have the 

 first ray yellow or the second black, the remainder orange; ventralsaud 

 anal with first ray white as on the tips of second and third. Caudal red- 

 dish, with obscure parallel dark bands, more distinct toward the tips of 

 the lobes. Caudal somewhat emarginate ; quite forked in the young, 

 which have also dark transverse bars on the sides. 



Hab. — Fresh- water lakes and streams from Canada to Tennesee on 

 the Atlantic slope. Occasionally repairs to salt or brackish water if 

 within reach. 



Among some fifty specimens of this species of trout in the Smithsonian 

 collection are individuals from Eastern Tennessee; Preston County, 

 Virginia, (Professor Andrews;) from the Potomac River ; from various 

 rivers and streams in Pennsylvania, New York, and the New England 

 States, Lake Superior, and Canada. 



Notwithstanding the great range of the species there is but little sign 



