Introduction / W. T. Edmondson -- Introduction to the Protista / R. Y. Stanier -- Bacteria / C. B. van Niel and R. Y. Stanier -- Fungi / Frederick K. Sparrow : Key to fungi imperfecti / William W.
15. Fresh-water fishes -- Definitions and counts of fish structures -- Key 15A : Fresh-water fishes -- Plate 15A : Fish structures -- Key 15B : Trout (Salmo) and Charrs (Salvelinus) -- Plate 15B : ...
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