Hylodidae
Hylodidae, commonly known as giant Neotropical torrent frogs, is a Family (biology), family of frogs native to Brazil and northern Argentina. Phylogenetic evidence suggests the Hylodidae being the sister group to the Alsodidae. ''Megaelosia, Megaelosia goeldii'' is one species that lost the ability to produce vocalizations which in turn is denoted as mute. Through observation of aggressive interactions, it was found that the species' vocal sacs are used for one form of its visual signaling and communication. Diversity The family contains 48 species in four genera: * ''Crossodactylus'' André Marie Constant Duméril, A.M.C. Duméril & Gabriel Bibron, Bibron, 1841 (13 species) * ''Hylodes'' Leopold Fitzinger, Fitzinger, 1826 (26 species) * ''Megaelosia'' Alípio de Miranda-Ribeiro, Miranda-Ribeiro, 1923 (one species) * ''Phantasmarana'' Vittorazzi, Augusto-Alves, Neves-da-Silva, species:Ana Maria Paulino Telles de Carvalho e Silva, Carvalho-e-Silva, species:Shirlei Maria Recco-Pi ...
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