Axanthism in Pithecopus gonzagai Andrade et al., 2020 (Anura: Phyllomedusidae)

The coloration pattern in wild animals is an important characteristic for survival as well as forintra and interspecific communication, being aberrant colorations rarely observed in vertebrates.Axanthism is the lack of yellow pigmentation, and considered an infrequent anomaly, for whichcases have been described in amphibians. We describe herein a case in the frog Pithecopusgonzagai, a species characterized by predominantly arboreal habits and widely distributed innortheastern Brazil. This is the first report of an axanthic adult specimen of P. gonzagai, foundin the municipality of Juazeiro do Norte, Ceara, Brazil.