Names with citations in year 1850
- Class: Amphibia Gray, 1825
- Synonym: Batrachia Bonaparte, 1850
- Synonym: Batrachia Gray, 1850
- Synonym: Peromela Bonaparte, 1850
- Order: Anura Fischer von Waldheim, 1813
- Synonym: Ranae Bonaparte, 1850
- Synonym: Salientia Gray, 1850
- Family: Alytidae Fitzinger, 1843
- Synonym: Alytina — Bonaparte, 1850
- Family: Bombinatoridae
- Family: Brevicipitidae Bonaparte, 1850
- Synonym: Brevicipitina Bonaparte, 1850
- Synonym: Engystomidae Bonaparte, 1850
- Family: Ceratophryidae Tschudi, 1838
- Synonym: Ceratophreidina — Bonaparte, 1850
- Synonym: Ceratophreina — Bonaparte, 1850
- Family: Cycloramphidae Bonaparte, 1850
- Synonym: Cyclorhamphina Bonaparte, 1850
- Family: Dendrobatidae Cope, 1865
- Synonym: Eubaphidae Bonaparte, 1850
- Synonym: Eubaphina — Bonaparte, 1850
- Subfamily: Dendrobatinae Cope, 1865
- Synonym: Eubaphidae Bonaparte, 1850
- Synonym: Eubaphina — Bonaparte, 1850
- Family: Hylidae Rafinesque, 1815
- Family: Leptodactylidae Werner, 1896
- Family: Megophryidae Bonaparte, 1850
- Synonym: Megalophreidina Bonaparte, 1850
- Family: Microhylidae Günther, 1858
- Synonym: Hylaedactylidae — Bonaparte, 1850
- Synonym: Hylaedactylina — Bonaparte, 1850
- Subfamily: Microhylinae Günther, 1858
- Synonym: Hylaedactylidae — Bonaparte, 1850
- Synonym: Hylaedactylina — Bonaparte, 1850
- Family: Myobatrachidae Schlegel, 1850
- Synonym: Myiobatrachidae Bonaparte, 1850
- Synonym: Myiobatrachina — Bonaparte, 1850
- Synonym: Myobatrachinae Schlegel, 1850
- Genus: Myobatrachus Schlegel, 1850
- Family: Pelobatidae Bonaparte, 1850
- Synonym: Pelobatina — Bonaparte, 1850
- Family: Pelodytidae Bonaparte, 1850
- Synonym: Pelodytina Bonaparte, 1850
- Family: Pipidae Gray, 1825
- Synonym: Dactylethrina — Bonaparte, 1850
- Genus: Pipa
- Family: Pyxicephalidae Bonaparte, 1850
- Family: Ranidae Rafinesque, 1814
- Synonym: Ranidae — Bonaparte, 1850
- Genus: Lithobates
- Family: Rhinodermatidae Bonaparte, 1850
- Synonym: Rhinodermina Bonaparte, 1850
- Order: Caudata Fischer von Waldheim, 1813
- Synonym: Atretodera — Baird, 1850
- Synonym: Gradientia Gray, 1850
- Synonym: Meantia Gray, 1850
- Synonym: Protei Bonaparte, 1850
- Synonym: Pseudo-salamandrae Bonaparte, 1850
- Synonym: Pseudosauria Gray, 1850
- Synonym: Salamandrae Bonaparte, 1850
- Family: Ambystomatidae Gray, 1850
- Synonym: Ambystomina Gray, 1850
- Synonym: Siredontina — Bonaparte, 1850
- Genus: Ambystoma Tschudi, 1838
- Synonym: Axolotus Gray, 1850
- Synonym: Heterotriton Gray, 1850
- Synonym: Salamandroides — Gray, 1850
- Species: Ambystoma jeffersonianum (Green, 1827)
- Synonym: Ambystoma jeffersoniana — Baird, 1850
- Species: Ambystoma macrodactylum Baird, 1850
- Synonym: Ambystoma macrodactyla Baird, 1850
- Synonym: Ambystoma macrodactylum — Gray, 1850
- Species: Ambystoma maculatum (Shaw, 1802)
- Synonym: Ambystoma carolinae Gray, 1850
- Synonym: Ambystoma punctata — Baird, 1850
- Synonym: Salamandra argus Gray, 1850
- Synonym: Siredon maculatus — Baird, 1850
- Species: Ambystoma mavortium Baird, 1850
- Synonym: Ambystoma mavortia Baird, 1850
- Synonym: Ambystoma mavortium — Gray, 1850
- Species: Ambystoma mexicanum (Shaw and Nodder, 1798)
- Synonym: Siredon mexicanum — Baird, 1850
- Species: Ambystoma opacum (Gravenhorst, 1807)
- Synonym: Amblystoma opacum — Gray, 1850
- Synonym: Ambystoma opaca — Baird, 1850
- Species: Ambystoma talpoideum (Holbrook, 1838)
- Synonym: Ambystoma ? talpoideum — Gray, 1850
- Species: Ambystoma tigrinum (Green, 1825)
- Synonym: Ambystoma episcopus Baird, 1850
- Synonym: Ambystoma lurida — Baird, 1850
- Synonym: Ambystoma tigrina — Baird, 1850
- Synonym: Heterotriton ingens — Gray, 1850
- Synonym: Proteus neocaesareanus — Gray, 1850
- Family: Cryptobranchidae Fitzinger, 1826
- Synonym: Andriantidae — Bonaparte, 1850
- Synonym: Andriantina — Bonaparte, 1850
- Synonym: Protonopseidae — Bonaparte, 1850
- Synonym: Protonopseina — Bonaparte, 1850
- Synonym: Protonopsidae Gray, 1850
- Synonym: Sieboldiidae Bonaparte, 1850
- Synonym: Sieboldinae — Bonaparte, 1850
- Genus: Andrias
- Genus: Cryptobranchus
- Family: Hynobiidae Cope, 1859
- Synonym: Molgidae Gray, 1850
- Synonym: Molgina Bonaparte, 1850
- Genus: Onychodactylus
- Family: Plethodontidae Gray, 1850
- Subfamily: Hemidactyliinae Hallowell, 1856
- Synonym: Mycetoglossina Bonaparte, 1850
- Synonym: Oedipina Gray, 1850
- Genus: Batrachoseps
- Genus: Bolitoglossa
- Genus: Eurycea
- Species: Eurycea bislineata (Green, 1818)
- Synonym: Ambystoma ? haldemani — Gray, 1850
- Synonym: Spelerpes bilineata — Baird, 1850
- Species: Eurycea cirrigera (Green, 1831)
- Synonym: Spelerpes cirrigera — Baird, 1850
- Species: Eurycea guttolineata (Holbrook, 1838)
- Synonym: Spelerpes guttolineata — Baird, 1850
- Species: Eurycea longicauda (Green, 1818)
- Synonym: Spelerpes longicauda — Baird, 1850
- Species: Eurycea quadridigitata (Holbrook, 1842)
- Synonym: Batrachoseps quadridigitata — Baird, 1850
- Synonym: Batrachoseps quadridigitatus — Gray, 1850
- Genus: Gyrinophilus
- Species: Gyrinophilus porphyriticus (Green, 1827)
- Synonym: Pseudotriton salmoneus — Baird, 1850
- Synonym: Spelerpes ? porphyritica — Gray, 1850
- Synonym: Spelerpes ? salmonea — Gray, 1850
- Genus: Pseudoeurycea
- Genus: Pseudotriton
- Subfamily: Plethodontinae Gray, 1850
- Family: Proteidae Gray, 1825
- Synonym: Hypochthonidae — Bonaparte, 1850
- Synonym: Necturidae — Bonaparte, 1850
- Genus: Necturus
- Genus: Proteus
- Species: Proteus anguinus Laurenti, 1768
- Synonym: Hypochthon Carrarae Fitzinger, 1850
- Synonym: Hypochthon Haidingeri Fitzinger, 1850
- Synonym: Hypochthon Laurentii Fitzinger, 1850
- Synonym: Hypochthon Schreibersii Fitzinger, 1850
- Synonym: Hypochthon freyeri Fitzinger, 1850
- Synonym: Hypochthon xanthostictus Fitzinger, 1850
- Synonym: Hypochthon zoisii Fitzinger, 1850
- Family: Salamandridae Goldfuss, 1820
- Synonym: Bradybatina Bonaparte, 1850
- Synonym: Geotritonidae Bonaparte, 1850
- Synonym: Geotritonina — Bonaparte, 1850
- Synonym: Pleurodelidae — Bonaparte, 1850
- Synonym: Pleurodelina — Bonaparte, 1850
- Synonym: Tritonina Bonaparte, 1850
- Subfamily: Pleurodelinae Tschudi, 1838
- Synonym: Bradybatina Bonaparte, 1850
- Synonym: Geotritonidae Bonaparte, 1850
- Synonym: Geotritonina — Bonaparte, 1850
- Synonym: Molgidae Gray, 1850
- Synonym: Pleurodelina — Bonaparte, 1850
- Synonym: Tritonina Bonaparte, 1850
- Genus: Cynops
- Genus: Ichthyosaura
- Genus: Lissotriton Bell, 1839
- Genus: Notophthalmus Rafinesque, 1820
- Synonym: Notophthalmia — Gray, 1850
- Synonym: Tristella Gray, 1850
- Species: Notophthalmus viridescens (Rafinesque, 1820)
- Synonym: Molge ocellata Gray, 1850
- Synonym: Notophthalmus miniatus — Gray, 1850
- Synonym: Notophthalmus viridescens — Gray, 1850
- Synonym: Notopthalmus viridescens — Baird, 1850
- Synonym: Tristella symmetrica — Gray, 1850
- Genus: Ommatotriton Gray, 1850
- Genus: Pleurodeles
- Genus: Taricha Gray, 1850
- Species: Taricha torosa (Rathke, 1833)
- Synonym: Notophthalmus torosus — Baird, 1850
- Synonym: Pleurodeles californiae Gray, 1850
- Synonym: Taricha torosa — Gray, 1850
- Subfamily: Salamandrinae
- Subfamily: Salamandrininae Fitzinger, 1843
- Synonym: Seiranotina Gray, 1850
- Order: Gymnophiona Müller, 1832