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  1. By: Bogert, Charles M. (Charles Mitchill), - Porter, Ann P.
    Publication info: New York, N.Y, American Museum of Natural History, [1966]
    Holding Institution: American Museum of Natural History Library
    Subjects: 59.81,2C(72)  Classification  Geophis  Geophis dubius  Mexico  Reptiles  Snakes  
  2. By: Dunn, E. R. (Emmett Reid),
    Publication info: New York City, American Museum of Natural History, [1928]
    Holding Institution: American Museum of Natural History Library
    Subjects: Central America  Classification  Geophis  Mexico  Reptiles  Snakes  Sonora michoacanensis  Tantilla  
  3. By: Myers, Charles W.
    Publication info: New York, NY American Museum of Natural History c2003
    Holding Institution: American Museum of Natural History Library
    Subjects: Atractus  Classification  Geophis  Panama  Rare reptiles  Reptiles  Snakes