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1.
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Taxonomic status of the snake genera Conopsis and Toluca (Colubridae) Goyenechea, I - Flores Villela, Oscar Alberto
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2.
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Extreme chromosomal polytypy in a population of Sceloporus grammicus (Sauria:Phrynosomatidae) at Santuario Mapethé, Hidalgo, Mexico Goyenechea, I - Mendoza Quijano, F - Flores Villela, Oscar Alberto - Reed, K
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3.
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Process and dynamics of traditional selling wild edible mushrooms in tropical Mexico. Rúan Soto, F - Garibay Origel, R - Cifuentes Blanco, Joaquín
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