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Current State of Knowledge of the Benthic Marine Algae of the Mexican Tropical Pacific. González González, Jorge - León Tejera, Hilda Patricia - Candelaria Silva, Carlos Federico - Gold Morgan, Michele Louise - Serviere, E - León Alvarez, Daniel - Fragoso, D
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A contribution to the knowledge of variation in Opheodrys vernalis (Harlan), with the description of a new subspecies Grobman, Arnold B
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The concise knowledge library: natural history Lydekker, Richard
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Contributions to our knowledge of the duration of life in vertebrate animals Flarer, Stanley Smith
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