Western Toad (Bufo boreas ). Both nocturnal and diurnal; breeds in stream below Tollhouse Spring; may be extinct.
Black Toad (Bufo exsul ). Diurnal except during heat of midsummer; introduced to Tollhouse Spring; may be extinct.
Great Basin Spadefoot (Spea intermontana ). Nocturnal; expected but not confirmed from Tollhouse Spring; known to occur nearby.