P. xxiii corrected "Salmo rivularis, the Steelhead Trout. [327]" to "Salmo gairdneri, the Steelhead Trout. [327]" to agree with the actual illustration caption.
P. xxiii corrected "Salmo rivularis, the Steelhead Trout. [327]" to "Salmo gairdneri, the Steelhead Trout. [327]" to agree with the actual illustration caption.