Geophis isthmicus, also known as the isthmian earth snake, is a snake of the colubrid family. It is found in Mexico.[2]
^Flores-Villela, O. (2007). Geophis isthmicus [https://www.iucnredlist.org/species/63798/12710937. In: IUCN 2007. IUCN Red List of Threatened Species. Version 2022.2.
^"Geophis isthmicus DUNN, 1920". Reptile Database. Retrieved 23 January 2019.
Geophisisthmicus, also known as the isthmian earth snake, is a snake of the colubrid family. It is found in Mexico. Flores-Villela, O. (2007). Geophis...
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