Names with citations in year 1838
- Class: Amphibia Gray, 1825
- Synonym: Batrachi Bonaparte, 1838
- Synonym: Cadnabranchia Hogg, 1838
- Synonym: Monopneumena Hogg, 1838
- Synonym: Ranae Bonaparte, 1838
- Order: Anura Fischer von Waldheim, 1813
- Synonym: Batrachia Tschudi, 1838
- Incertae Sedis: Arethusa Bonaparte, 1838
- Family: Alytidae
- Family: Bombinatoridae Gray, 1825
- Synonym: Bombinatores — Tschudi, 1838
- Genus: Bombina
- Family: Bufonidae Gray, 1825
- Family: Calyptocephalellidae
- Family: Ceratobatrachidae
- Family: Ceratophryidae Tschudi, 1838
- Family: Cycloramphidae
- Family: Dendrobatidae
- Family: Dicroglossidae
- Family: Eleutherodactylidae
- Family: Hylidae Rafinesque, 1815
- Synonym: Hyladina — Bonaparte, 1838
- Synonym: Hylae — Tschudi, 1838
- Subfamily: Hylinae Rafinesque, 1815
- Subfamily: Pelodryadinae
- Genus: Litoria Tschudi, 1838
- Synonym: Ranoidea Tschudi, 1838
- Species: Litoria aurea (Lesson, 1826)
- Synonym: Hyla jacksoniensis — Tschudi, 1838
- Synonym: Ranoidea jacksoniensis Tschudi, 1838
- Species: Litoria citropa (Péron, 1807)
- Synonym: Dendrohyas citropa — Tschudi, 1838
- Synonym: Hyla citropa — Tschudi, 1838
- Species: Litoria freycineti Tschudi, 1838
- Species: Litoria peronii (Tschudi, 1838)
- Synonym: Dendrohyas Peronii Tschudi, 1838
- Synonym: Hyla peronii Tschudi, 1838
- Subfamily: Phyllomedusinae
- Family: Hylodidae
- Family: Hyperoliidae
- Family: Leptodactylidae Werner, 1896
- Family: Mantellidae
- Family: Megophryidae
- Family: Microhylidae
- Family: Myobatrachidae
- Family: Odontophrynidae
- Family: Pelobatidae
- Family: Pelodytidae
- Family: Pipidae Gray, 1825
- Synonym: Dactylethridae Hogg, 1838
- Synonym: Pipae — Tschudi, 1838
- Genus: Xenopus
- Family: Pyxicephalidae
- Family: Ranidae Rafinesque, 1814
- Family: Rhacophoridae
- Subfamily: Buergeriinae
- Subfamily: Rhacophorinae
- Genus: Philautus Gistel, 1848
- Genus: Polypedates Tschudi, 1838
- Synonym: Polypedotes Tschudi, 1838
- Species: Polypedates leucomystax (Gravenhorst, 1829)
- Synonym: Hyla leucopogon Tschudi, 1838
- Synonym: Hyla quadrivirgata Tschudi, 1838
- Synonym: Polypedates leucomystax — Tschudi, 1838
- Species: Polypedates maculatus (Gray, 1830)
- Synonym: Bürgeria maculata Tschudi, 1838
- Synonym: Hyla Reynoudi Tschudi, 1838
- Genus: Rhacophorus
- Genus: Theloderma Tschudi, 1838
- Order: Caudata Fischer von Waldheim, 1813
- Synonym: Derotremata Tschudi, 1838
- Synonym: Diplopneumena Hogg, 1838
- Synonym: Ichthyodi Bonaparte, 1838
- Synonym: Imperfectibranchia Hogg, 1838
- Synonym: Manentibranchia Hogg, 1838
- Synonym: Proteideae Tschudi, 1838
- Synonym: Salamandrina Tschudi, 1838
- Family: Ambystomatidae
- Genus: Ambystoma Tschudi, 1838
- Synonym: Axolotl Tschudi, 1838
- Synonym: Xiphonura Tschudi, 1838
- Species: Ambystoma jeffersonianum (Green, 1827)
- Synonym: Xiphonura jeffersoniana — Tschudi, 1838
- Species: Ambystoma maculatum (Shaw, 1802)
- Synonym: Ambystoma subviolaceum — Tschudi, 1838
- Species: Ambystoma mexicanum (Shaw and Nodder, 1798)
- Synonym: Axolotl pisciformis — Guérin-Méneville, 1838
- Species: Ambystoma talpoideum (Holbrook, 1838)
- Synonym: Salamandra talpoidea Holbrook, 1838
- Family: Cryptobranchidae Fitzinger, 1826
- Family: Hynobiidae
- Family: Plethodontidae
- Family: Proteidae Gray, 1825
- Synonym: Proteidae — Hogg, 1838
- Synonym: Proteideae — Tschudi, 1838
- Genus: Proteus
- Family: Salamandridae Goldfuss, 1820
- Family: Sirenidae Gray, 1825
- Synonym: Sirenidae — Hogg, 1838
- Order: Gymnophiona Müller, 1832
- Synonym: Abranchia Hogg, 1838
- Synonym: Batrachophidii Bonaparte, 1838
- Synonym: Batracophidii Bonaparte, 1838
- Synonym: Caeciliae Tschudi, 1838
- Synonym: Coeciliae Tschudi, 1838
- Synonym: Gymnophiona — Tschudi, 1838
- Family: Caeciliidae
- Family: Rhinatrematidae