272 NEW YORK STATE MUSEIUM 



pressed, witlioiit raised crest, with teeth on the head of the 

 bone and none on the shaft; scales very small, 200 to 250 in a 

 len^hwise series; fins moderate, the caudal forked in the young, 

 truncate in some species in the adult; sexual peculiarities not 

 strongly marked, the males with the premaxillaries enlarged and 

 a fleshy projection at the tip of the lower jaw. Coloration dark, 

 with round, crimson spots, the lower fins sometimes with mar- 

 ginal bands of black, reddish, and pale. Species numerous in 

 the clear streams and lakes of the northern parts of both con- 

 tinents, sometimes descending to the sea, where they lose their 

 variegated colors and become nearly plain and silvery. The 

 members of this genus arc by far the most active and handsome 

 of the trout, and live in the coldest, clearest and most secluded 

 waters. (After Jordan and Evermann) . 



140 Salvelinus fontinalis (Mitchill) 



Brook Trout 



Salinn fontinalis Mitchill, Trans. JAt. & Phil. Koc. X. Y. I. 4;^. t815. near 



New York; Richardson, Fauna Bor.-Amer. III. 17(i, pi. 8.S. iv^. 1. 1836; 



I)E Kay, X. Y. Fauna, Fishes. 235, pi. 38, fig. 120, 1842; Gunther. 



Cat. Fish. Brit. Mus. VI, 1.52, 18(Wi. 

 Salmo raiiadntsis Hamilton Smith in Griffith's Cuvier, X, 474, 1834, 



Canada. 

 Saimn iiiimnrii lotus H. R. Storer, Bost. .Tour. Xat. Hist. VI, 364. 1850, Ix)w(*r 



St I^awroiK-c. 

 Huhiio eriithroua-^tcr 1)E Kay. X. Y. Fauna. Fishes, 230. pi. 39. fij;;. i:^!, 1842. 

 Bainm fontinalis De Kay, op. cit. 244. pi. 20, fig. 58, 1842. 

 SahyUnus fontinalis .Jordan, rroc. V. S. Xat. Mus. I. 81. 1878. in part; 



Jordan & Gilbert. Bull. 16. U. S. Xat. Mus. 320, 1883; Goode, Fish & 



Fiish. Ind. U. S. I, 497, pi. 192, 1884; Bean, Fishes Penna. 80, color pi. 



7. 1893; Bull. Aiuer. Mus. Xat. Hist. IX, 350, 1897; Bowers. Manual 



Fish Cult. ed. 2. color pi. frontispiece. 1900; .Jordan & Etermann. 



Bull. 47. U. S. Xat. Mus. 500. pi. T.XXXII. fig. 218. 1900. 



The brook trout varies greatly in the shape of the body, which 

 is sometimes short and deep and again elongate and moderately 

 thin. The de})th is usually about one fourth or two ninths total 

 length without caudal, and is about equal to length of head. 

 The least depth of the caudal ])eduncle is a little more than onc^ 

 third of its greatest depth. The head is large and the snout 

 somewhat obtuse. The eye is in front of the middh^ of its length, 

 a little more than one half as long as the snout, and about one 



