It is known from a few localities in southwestern Cameroon, Equatorial Guinea, and western Gabon.

The dorsum is uniformly dark green and black with some tiny pale spots.

[3] Petropedetes palmipes occurs in rocky areas in lowland forest, usually near flowing water,[1] at elevations up to 469 m (1,539 ft) above sea level.

[3] Petropedetes palmipes is a rare species that does not tolerate much modification of its forest habitat.

It is, presumably, threatened by habitat loss caused by agriculture, logging and human settlements.