Scientists named this genus after Angel Alcala, a Filipino biologist who worked with Southeast Asian amphibians.[1]
Description
Compared to the closely related genera Cornufer and Platymantis, Alcalus are medium-sized. In Alcalus baluensis and A. mariae, male frogs are 20–37 mm (0.79–1.46 in) long from nose to rear end and females 26–43 mm (1.0–1.7 in). The head is wided. Skin is coarse, shagreened, or wrinkled in appearance. These frogs have disks on their toes for climbing, and they are very wide. These frogs have webbed skin between their toes . Male frogs have nuptial pads but no vocal sacs.[1]
↑ 3.03.1"Ceratobatrachidae". AmphibiaWeb: Information on amphibian biology and conservation. [web application]. Berkeley, California: AmphibiaWeb. 2020. Retrieved 21 June 2020.