Here you’ll find 8 Amphibians that start with O that begin with O, organized from “Oak toad” to “Ornate narrow-mouthed frog”. These species range from small, camouflaged toads to brightly colored frogs and occupy freshwater, forest, and wetland habitats worldwide.
Amphibians that start with O are species whose common names begin with the letter O, including frogs and toads with varied life histories. For example, the Oak toad is familiar to North American naturalists for its small size and lively breeding calls.
Below you’ll find the table with Common name, Scientific name, Habitat, Lifespan and Notes.
Common name: The everyday name helps you recognize and search for the species in field guides and casual references.
Scientific name: The binomial gives precise identification so you avoid confusion from regional or duplicate common names.
Habitat: Brief habitat and regional notes show where you can observe the species or focus conservation efforts.
Lifespan: Typical wild and captive age ranges give you context on life history and species persistence.
Notes: Short remarks highlight conservation status, distinctive behavior, or identification tips that help your research or fieldwork.
Amphibians that start with O
| Common name | Scientific name | Habitat/Region | Lifespan (years) | Description |
|---|---|---|---|---|
| Olm | Proteus anguinus | Subterranean karst caves, Dinaric Alps (SE Europe) | wild 50–100; captive 70–100 | Blind, paedomorphic cave salamander with external gills; slow-growing, long-lived, sensitive to pollution (IUCN Vulnerable). |
| Oriental fire-bellied toad | Bombina orientalis | Ponds, rice paddies, temperate forests; NE China, Korea, Russia | wild 5–10; captive 10–15 | Small toad with bright red/orange belly used as a warning display; hardy in captivity, popular pet species (IUCN Least Concern). |
| Oak toad | Anaxyrus quercicus | Pine flatwoods and sandy uplands, SE USA | wild 2–4; captive 5–10 | Tiny yellow-brown toad with black dorsal blotches; explosive breeder in seasonal pools, restricted southeastern range. |
| Oregon spotted frog | Rana pretiosa | Marshes, ponds and wet meadows, Pacific Northwest USA | wild 5–7; captive 8–12 | Mottled frog of wetland habitats; declining due to habitat loss and invasive predators (IUCN Endangered). |
| Ornate chorus frog | Pseudacris ornata | Seasonal ponds, wet pine flatwoods, SE USA | wild 2–5; captive 4–6 | Small chorus frog with dark dorsal patterning; males call in large choruses after rains. |
| One-toed amphiuma | Amphiuma pholeter | Swamps, slow-flowing streams, Gulf Coastal Plain, SE USA | wild 6–10; captive 10–12 | Eel-like aquatic salamander with tiny single-toed limbs; nocturnal and elusive. |
| Ornate narrow-mouthed frog | Microhyla ornata | Grasslands, agricultural fields, tropical South Asia | wild 1–3; captive 2–5 | Tiny, round-bodied frog feeding on ants and small invertebrates; widespread and adaptable. |
| Orange-thighed frog | Litoria xanthomera | Rainforest edges and open wet forest, NE Australia | wild 5–10; captive 8–12 | Treefrog notable for bright orange thigh patches used in courtship displays; active near breeding pools. |