asil (Amphibia: Anura: Amphignathodontidae) Amphignathodontidae) Amphignathodontidae) Amphignathodontidae) Amphignathodontidae)

ABSTRACT. Thehe speciesspecies of of Gastrotheca Fitzingeritzinger atat Organsgans MountainsMountains, RioRio dede Janeiroo StateState, Brazilazil (Amphibia:Anuraa: Amphignathodontidae). A Amphignathodontidae). study of the anurofauna of the Brazilian rainforest in the mountain chain ofSerra dos Orgaos (state of Rio de Janeiro) revealed the occurrence of three species of Gastrotheca Fitzinger, 1843: G.albolineata (Lutz & Lutz, 1939), G. ernestoi Miranda-Ribeiro, 1920 and G. fulvorufa (Andersson, 1911). These taxa arecompared with respect to their external and cranial morphology, as well as call structure, and diagnosed as threeunique species. The name Gastrotheca microdiscus (Andersson, 1910), which G. fulvorufa and G. ernestoi have beenrecently considered as synonyms, is not applied to either of the three species from Serra dos Orgaos, given thesmaller size of the disks of fingers and toes and by the derm of the head completely involved in a faintly rugosecranial ossification in