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KKI'ORT OF STATE HOARD OF FISH COMMISSIONERS. 



caudal fin. There is usually no red behind the lower jaw, although 

 in large fishes of the upper Sierras this shade sometimes appears. In 

 little streams the Rainbow is mature a1 six inches, hut in larger streams 

 and in the estuaries it readies a weight of six to eight pounds. 



RAINBOW TROUT. 

 Specimen showing river coloration ; from McCloud River, California. 



Brook specimens are usually most profusely spotted, but in the sea 

 these spots are more or less obscured by a silvery sheen. In coastwise 

 streams it runs up the streams in March to spawn, like a salmon, 

 being able to leap over small waterfalls. 



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RAINBOW TROUT— Salmo iridia Gibbons. 

 Sea-run specimen from San Francisquito Creek. 



The Rainbow on the whole is probably the gamiest of the trout, 

 taking a fly eagerly and responding also to the lure of a grasshopper 

 or a salmon egg. The range of the Rainbow trout extends southward 

 to San Luis Rey River in Southern California and even across the 

 Mexican line into Lower California. Perhaps even more than any 

 other trout this species varies with its surroundings. 



