Records from Príncipe now refer to Hyperolius drewesi,[2] described as a distinct species in 2016.

[4] The species was described by Jacques von Bedriaga in 1892[2] and was named after Adolphe F. Moller (1842–1920), a Portuguese botanist who collected in São Tomé.

[5] It belongs to the so-called Hyperolius cinnamomeoventris species complex.

[3] Hyperolius molleri occurs in primary forest, farm bush, coconut groves, coffee plantations, and disturbed areas from near sea level to 1,420 m (4,660 ft) above sea level.

It occurs in the Parque Natural Obô de São Tomé.