Meristogenys amoropalamus

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Meristogenys amoropalamus is a frog in the Ranidae family, found only in northern Borneo. It lives in northwestern Sabah and northeastern Sarawak (Malaysia) and northeastern Kalimantan (Indonesia). Common names for this species are the mountain Borneo frog and the mountain torrent frog. In 2011, scientists studying its tadpoles found two hidden forms, and Meristogenys dyscritus was described as a separate species.

The name amoropalamus comes from Greek words meaning "incomplete" and "web," referring to its poorly developed toe webbing. Adult females are larger, reaching about 80 mm from snout to vent, while males are smaller. Some measurements from researchers show up to about 67 mm for females and 40 mm for males. Males have a relatively large tympanum and a blunt snout. The fingers and toes have round discs, and the toes are only partially webbed. The back is light brown with small dark spots, and the underside is whitish.

This frog lives in montane forests at elevations of 1,000–2,200 meters above sea level, and is usually found along the banks of clear, rocky streams. Tadpoles cling to rocks and feed on lithophytes.

Meristogenys amoropalamus is threatened by habitat loss from logging and agriculture, and by collection for food. It occurs in Kinabalu and Crocker Range National Parks in Malaysia, and in Betung Kerihun and Pulong Tau National Parks in Indonesia (though Pulong Tau is not yet well protected). The IUCN lists it as Least Concern.