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3Descripción del cráneo de Bramocharax caballeroi Contreras and Rivera 1985 (Pisces, Characidae), pez endémico del Lago de Catemaco, Veracruz, México Descripción del cráneo de Bramocharax caballeroi Contreras and Rivera 1985 (Pisces, Characidae), pez endémico del Lago de Catemaco, Veracruz, MéxicoTexto bibliotecaECOSUR
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6Probing diversity in freshwater fishes from Mexico and Guatemala with DNA barcodes Probing diversity in freshwater fishes from Mexico and Guatemala with DNA barcodesby Valdez Moreno, Martha Doctora autor/a 2050, Ivonova, N. V. autor/a, Elías Gutiérrez, Manuel Doctor autor/a 2041, Contreras Balderas, Salvador autor/aTexto bibliotecaECOSUR
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7Conservation status of imperiled North American freshwater and diadromous fishes Conservation status of imperiled North American freshwater and diadromous fishesby Schmitter Soto, Juan Jacobo Doctor 2049, Jelks, Howard L., Walsh, Stephen J. autor/a, Contreras Balderas, Salvador autor/a, Díaz Pardo, Edmundo Doctor 1945-2013 autor/a 15041, Schmitter Soto, Juan Jacobo Doctor autor/a 2049, Jelks, Howard L. autor/aTexto bibliotecaECOSUR