Plate 10 



THE. BROOK TROUT (5. fontinalis) male 



The derived form, believed by Kendall not to occur north of the drainage 



basin of the Great Lakes and the St. Lawrence River, nor back of 



the Labrador coast, $". hudsonicus and 6\ marstoiii. taking 



its place in the lakes and streams 



BROOK TROUT (5. fontinalis) 



Young female in spawning condition, from a living 

 specimen 7^ inches long, 14 months old, 

 hatched at Wytheville, Va. The con- 

 spicuous parr marks are note- 

 worthy. 



