Classification
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Thorius - Mexican Pigmy Salamanders
- Thorius arboreus - Arboreal Thorius
- Thorius aurens - Golden Thorius
- Thorius boreas - Boreal Thorius
- Thorius dubitus - Acultzingo Pigmy Salamander
- Thorius grandis - Grand Minute Salamander
- Thorius infernalis - Atoyac Minute Salamander
- Thorius insperatus - Surprise Thorius
- Thorius lunaris - Crescent-nostriled Thorius
- Thorius macdougalli - MacDougall's Pigmy Salamander
- Thorius magnipes - Big-footed Thorius
- Thorius minutissimus - Oaxacan Pigmy Salamander
- Thorius minydemus - Minute Thorius
- Thorius munificus - McDiarmid Thorius
- Thorius narismagnus - San Martin Pigmy Salamander
- Thorius narisovalis - Upper Cerro Pigmy Salamander
- Thorius omiltemi - Omiltemi Minute Salamander
- Thorius papaloae - Papalo Minute Salamander
- Thorius pennatulus - Veracruz Pigmy Salamander
- Thorius pulmonaris - Cerro San Felipe Salamander
- Thorius schmidti - Schmidt's Pigmy Salamander
- Thorius smithi - Smith's Thorius
- Thorius spilogaster - Spotted Thorius
- Thorius troglodytes - Taylor's Pigmy Salamander
