''Thorius minutissimus'' is a species of salamander in the family Plethodontidae. It is endemic to Mexico. It is known only from one site near Santo Tomás Teipan in the

Sierra Madre del Sur The Sierra Madre del Sur is a mountain range in southern Mexico, extending from southern Michoacán east through Guerrero, to the Isthmus of Tehuantepec in eastern Oaxaca. Geography The Sierra Madre del Sur joins with the Eje Volcánico Transv ...

of Oaxaca, in pine–oak forest at 2,458 meters elevation. Its extent of occurrence (EOO) is 10 km², which represents the single location. It is threatened by habitat loss.

References

Endemic amphibians of Mexico minutissimus Fauna of the Sierra Madre del Sur Amphibians described in 1949 Taxonomy articles created by Polbot {{Plethodontidae-stub