Thorius grandis Hanken, Wake, and Freeman, 1999, Copeia, 1999: 923. Holotype: MVZ 183384, by original designation. Type locality: "Puerto del Gallo, México, elevation 2500 m".
Grand Minute Salamander (original publication; Liner and Casas-Andreu, 2008, Herpetol. Circ., 38: 36).
Montane forests of the Sierra Madre del Sur of central Guerrero, Mexico, northeast of Atoyac de Alvarez, 2800-3000 m elevation.
Raffaëlli, 2007, Les Urodèles du Monde: 237, provided a brief account and map. See map, description of geographic range and habitat, and conservation status in Stuart, Hoffmann, Chanson, Cox, Berridge, Ramani, and Young, 2008, Threatened Amph. World: 594.
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