RAINBOW TROUT
Body color variable.
May
be silvery in lakes and reservoirs. Back olive to
greenish blue, belly white to silvery. Sides may show red or pink
streak, white tip on pelvic (belly) and anal fin usually evident. Irregular spots on back, sides, head, dorsal fin and tail. NATIVE.

Illustration by Joseph Tomelleri.
Links to more information about Rainbow Trout:
Idaho Chapter of the American Fisheries Society