It has been observed in Malaysia, Myanmar, and Thailand, though scientists believe the Sumatran population may be another closely related specie.

They distinguish the species in that R. norhayatii has darker coloration on the webbed skin on its feet, which are black with blue marks.

Also, R. norhayatii males are larger than those of R. reinwardtii and smaller than those of R. nigropalmatus and R. kio: The adult male R. norhayatii frog can be as big as 64.7 mm long from nose to rear end.

The toes on all four feet are black with some blue and green marks, like the webbed skin.

[3] Scientists named this frog norhayatii for Dr. Norhayati Ahmad of the National University of Malaysia.