THE FOOD AND GAME FISHES OF NEW YORK. 335 



63. Hybrid Trout (Brown and Brook). 



A very beautiful and interesting hybrid is produced by crossing the Brown Trout 

 and the Brook Trout. The following is a description of this hybrid : 



Salmo (HYBRID = fario-|-fontinalis) 



Hybrid Trout. 



In a paper published some years ago the writer stated, as a result of his studies, 

 that when a large-scaled trout is crossed with a small-scaled one, the hybrid will be 

 large-scaled whichever way the cross be made. The hybrid between the Brown Trout 

 and the Brook is a large-scaled form, and it is sterile as far as reported. The New 

 York aquarium has had this hybrid from the South Side Sportsmen's Club and from 

 the New York hatcheries at Coldspring Harbor, L. I., and Caledonia. It is always 

 a strikingly handsome fish, and grows to a large size ; but it is far less hardy than 

 either of its parents. The cross has always been artificially made, and never occurs 

 naturally. Two specimens studied gave the following measurements in inches : 



MEASUREMENTS. 



CALEDONIA, N. Y. OAKDALE, N. Y. 

 JUNE io, 1896. MARCH 23, 1897. 



JAMES ANNIN, JR. G. P. SLADE. 



Extreme length, 9^ 14^ 



Length of middle caudal rays from end of scales, ^ 



Depth of body, i^ 3>^ 



Least depth of caudal peduncle, 7 /& 



Length of head, - 2 3/^ 



Length of snout, - i/^ 



Length of upper jaw, i/^ 



Length of lower jaw, - i^ 



Diameter of eye, - - Vie 7 /i6 



Distance from snout. to dorsal origin, 3^ 



Length of dorsal base, i 3 /i6 



Length of longest dorsal ray, i s /i6 



Length of last dorsal ray, Y 



Distance from snout to ventral origin, - 4>2 



Length of ventral, i/^ 



Distance from snout to anal origin, - 6 



Length of anal base, - ^ 



Length of longest anal ray, iX 



Length of last anal ray, 



