[1][2] The natural habitats of this frog are subtropical or tropical moist lowland forests, subtropical or tropical moist montane forests, rivers, and intermittent rivers.

Eggs are laid among rocks and hatch into miniature adults, bypassing a larval stage.

[1] The species is threatened by habitat loss.

It has thus been proposed that both populations be considered evolutionary significant units for conservation purposes.

[3] This frog, the rarest in Seychelles, was named for its discoverer, Hans Paul Thomasset (1862-1949).