Geophis pyburni Campbell & Murphy 1977: 397.
Holotype. University of Texas at Arlington Collection of Vertebrates (UTA) R 4404, female, collected 8 July 1974 by J. A. Campbell.
Typelocality. Rancho La Pastilla, ca. 2.5 km west of Dos Aguas, Sierra de Coalcomán, Michoacán, Mexico, 2164 m elevation.
Distribution. Known only from the type locality in the Sierra de Coalcomán, Michoacán, Mexico.
Species group. sieboldi (Campbell & Murphy 1977; by inference).
Systematic references. Campbell & Murphy (1977).