microhylidae: narrow-mouthed toads and sheep frogs; some burrow and some are arboreal; found worldwide
amphibian family: any family of amphibians
polypodiaceae: ferns: a large family that in some classification systems has been subdivided into several families (including Aspleniaceae and Blechnaceae and Davalliaceae and Dennstaedtiaceae and Dryopteridaceae and Oleandraceae and Pteridaceae)