| Noun | 1. | Microhylidae - narrow-mouthed toads and sheep frogs; some burrow and some are arboreal; found worldwideamphibian family - any family of amphibians Anura, Batrachia, order Anura, order Batrachia, order Salientia, Salientia - frogs, toads, tree toads Gastrophryne, genus Gastrophryne - primarily tropical narrow-mouthed toads genus Hypopachus, Hypopachus - sheep frogs |