Eastern spadefoot toads (Leptobrachium, also known as large-eyed litter frogs[1]) comprise a genus of the family Megophryidae in the order Anura, and are found in southern China, northeast India, southeast Asia, and islands of the Sunda Shelf as well as the Philippines.

[4] The sister taxon of Leptobrachium is a clade that includes Scutiger and Oreolalax.

[2] These subgenera (or genera) were originally separated by presence (in Vibrissaphora, hence the common name moustache or spiny toad) and absence of nuptial spines on the upper labium in males during the breeding season (in Leptobrachium).

Later genetic analyses have not supported this original separation, but still indicate the presence of two distinct clades.

Subgenus Vibrissaphora thus defined is distributed in southern China and Indochina, and subgenus Leptobrachium in the Malay Peninsula and the Malay Archipelago northwest of the Wallace Line.