Mexico Herpetology

ELEGANT NARROW-MOUTHED TOAD
Gastrophryne elegans – Boulenger 1882

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Flooded Field Oviposition Site, 50′, Veracruz, Mexico

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Adult Male, 3,500′, Veracruz, Mexico

Adult Male, 251′, Sierra de los Tuxtlas, Veracruz, Mexico

Adult Male, Pacific Variant, 198′, Oaxaca, Mexico

TWO-SPADED NARROW-MOUTHED TOAD
Gastrophryne usta – Cope 1866

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Rainforest Habitat, 4,217′, Veracruz, Mexico

Flooded Field Oviposition Site, 71′, Veracruz, Mexico

Temporary Pond Oviposition Site, 216′, Oaxaca, Mexico

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Adult, Kansas

GREAT PLAINS NARROW-MOUTHED TOAD
Gastrophryne olivacea – Hallowell 1856
Gastrophryne olivacea olivacea – Hallowell 1856

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Adult, 4,500′, Sonora, Mexico

Adult Male Gastrophryne olivacea mazatlanensis compared with another sympatric Microhylid, Hypopachus variolosus

SINALOA NARROW-MOUTHED TOAD
Gastrophryne olivacea – Hallowell 1856
Gastrophryne olivacea mazatlanensis – Taylor 1943

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Permanent Stream Oviposition Site, 4,500′, Sonora, Mexico

Man-Made Oviposition Site, 2,300′, Sonora-Arizona Border

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