Genus Newtonia

Tulear Newtonia - Its natural habitat is subtropical or tropical moist lowland forests.

Tabity Newtonia - Its natural habitats are subtropical or tropical dry forests and subtropical or tropical dry shrubland.

Common Newtonia - Its natural habitats are subtropical or tropical dry forests and subtropical or tropical moist lowland forests.

Fanovana Newtonia - Its natural habitat is subtropical or tropical moist lowland forests. It is threatened by habitat loss.