Rainbow Trout  (Oncorhynchus mykiss) 

Identification:  In sea bluish above; silvery below. Has small black spots on back and most fins.  Sometimes a red to pink side stripe. Head short; diameter of eye about equal to length of  snout. Inside of mouth white. In freshwater, back more greenish and side less silvery. To 45 inches, over 40 lbs.  but usually less than 10 lbs. Range: Japan to Bering Sea and south to Baja California; in sea only as far south as central California.  Habitat:  Anadromous, in sea and coastal streams.

Cutthroat Trout  (Oncorhynchus clarkii)

Identification: Usually a freshwater fish, but some populations are anadromous.  In sea resembles the rainbow trout, but usually has a red or orange "cutthroat" mark on lower jaw. Body and fins (except pelvic fin) have dark spots. Inside mouth white. Small teeth on rear of tongue.  Bluish above; silvery below.  Smaller in the sea - to about 2 1/2 ft., 17 lbs. but usually 1 to 4 lbs.; freshwater specimens larger, record is 41 lb. Range: In sea, from Gulf of Alaska to Eel River in northern California. Habitat: When in sea usually near rivers and estuaries; more common in fresh water. Unlike Pacific salmon, which die after one spawning period, coastal cutthroat trout have been known to spawn each year for more than six years. 

Dolly Varden  (Salvelinus malma)

Identification: A fish with trout-like characteristics usually found in fresh water. In sea mostly dark blue above; silvery on side; silvery to white below but sometimes pinkish on lower side. Cream colored spots on most of body. Color varies more in fresh water, but usually bright yellow to red spots on back and side.  To about 3 ft. but usually 1 1/2 - 2 ft.; to 40 lbs. Range: Korea to Bering Sea and to Oregon, with a freshwater population in California.  Most abundant in salt water in north, no records from sea south of Oregon.  Habitat: Anadromous, in sea and coastal streams.