[2] Named after Ōita Prefecture, its natural habitats are temperate forests, rivers, intermittent rivers, freshwater marshes, intermittent freshwater marshes, and irrigated land in western Japan.

[3] The Oita salamander is considered to be vulnerable by the (IUCN) Red List of Threatened Species with a declining population.

[7] Young Oita salamanders have a blue iridescent highlight to them, until they eventually fade with adulthood.

In wetter environments the blue iridescent color is more pronounced than those in dryer locations.

This species can be found exclusively in the Japanese Island groups of Shikoku and Kyushu.

[3] The Oita salamander enjoys eating insects, i.e., earthworms, miniature mealworms, fly maggots, spiders, mosquito larvae, woodlice, millipedes, etc.

[3] There is no distinct appearance separating male and female Oita salamanders except for during the mating season (December – May).

The female salamanders tails become yellow,[3] and their weight increases due to ovulation and there egg sacs absorbing water.

The "wandering phase", the males walk at the bottom of the river/pond/tank (if in captivity) searching for branches that can hold the weight of at least several Oita salamanders.