(Phrynobatrachus gastoni)
Phrynobatrachus gastoni is a species of frog in the family Phrynobatrachidae. It is endemic to the north-central Democratic Republic of the Congo and only known from its type locality, Buta. The specific name gastoni honours Gaston-François de Witte, a Belgian colonial administrator and naturalist who scrutinized the types. Common name Buta river frog has been coined for it.