Ambystoma proserpine (Baird & Girard, 1852)
Siredon lichenoides (Baird & Girard, 1852)
Ambystoma nebulosum (Hallowell, 1853)
Ambystoma maculatum (Hallowell, 1858)
Siredon lichenoides melanostictum (Baird, 1860)
Amblystoma trisruptum (Cope, 1868)
Ambystoma tigrinum slateri (Dunn, 1940)
Ambystoma tigrinum diaboli (Dunn, 1940)
Ambystoma tigrinum stebbinsi (Lowe, 1954)
Ambystoma tigrinum utahense (Lowe, 1955)