Plethodontidae Gray, 1850
Thorius arboreus Hanken & Wake, 1994
Thorius aureus Hanken & Wake, 1994
Thorius boreas Hanken & Wake, 1994
Thorius dubitus Taylor, 1941
Thorius grandis Hanken, Wake & Freeman, 1999
Thorius infernalis Hanken, Wake & Freeman, 1999
Thorius insperatus Hanken & Wake, 1994
Thorius lunaris Hanken & Wake, 1998
Thorius macdougalli Taylor, 1949
Thorius magnipes Hanken & Wake, 1998
Thorius minutissimus Taylor, 1949
Thorius minydemus Hanken & Wake, 1998
Thorius munificus Hanken & Wake, 1998
Thorius narismagnus Shannon & Werler, 1955
Thorius narisovalis Taylor, 1940
Thorius omiltemi Hanken, Wake & Freeman, 1999
Thorius papaloae Hanken & Wake, 2001
Thorius pennatulus Cope, 1869
Thorius pulmonaris Taylor, 1940
Thorius schmidti Gehlbach, 1959
Thorius smithi Hanken & Wake, 1994
Thorius spilogaster Hanken & Wake, 1998
Thorius troglodytes Taylor, 1941
