A striking characteristic is the vertically slit pupil in daylight. The tongue is thick, circular, and almost entirely adhering to the floor of the mouth. When mating the males clutches the females in the lumbar region, just before the hind legs (
inguinal Amplexus).
Taxonomy to the genus level
Family
Megophryidae Bonaparte, 1850 - Litter frogs or Asian toad frogs (202 species)[1]
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abcChen et al. (2016) A novel multilocus phylogenetic estimation reveals unrecognized diversity in Asian horned toads, genus Megophrys sensu lato (Anura: Megophryidae), Mol Phyl. Evol. 106, 28-43
Further reading
Herre, W. (1950): "On the problem of taxonomy of Anuren". Zool. Scoreboard164, pp. 394–400.
Kuhn, O. (1961): The families of the recent and fossil amphibians and reptiles, 79 pp publishing house Meisenhelder Bach KG Bamberg.