Hylambates palmatus Peters, 1868 The palm forest tree frog (Leptopelis palmatus) is a species of frog in the family Arthroleptidae which is endemic to Príncipe island in São Tomé and Príncipe.

[2][3][4] The palm forest tree frog is a large species: females measure 81–110 mm (3.2–4.3 in) in snout–vent length.

The colouring varies, but the dorsum is typically dark green to black, sometimes with many light spots giving the frog a marbled appearance.

It is believed that eggs are buried close to water; when they hatch, the tadpoles move into pools or streams where they complete their development.

[1] It is a reasonably common species throughout the island, although habitat loss through development is a potential future threat.