title: Internal oral morphology in larvae of the genus Rhinella Fitzinger, 1826 (Amphibia, Anura, Bufonidae) .
abstract: From the 86 species allocated in the genus Rhinella, 25 have their tadpoles described and only R. arenarum, R. chrysophora, R. icterica, R. ornata, R. schneideri and R. spinulosa have aspects of the internal oral morphology evidenced. Herein, the internal oral morphology from 12 species of Rhinella distributed between the morphological groups of R. crucifer, R. granulosa, R. marina and R margaritifera is described and compared. The internal oral morphology of Rhinella is little variable in many aspects. Despite the many similarities found between the tadpoles of Rhinella, the study showed that there are characteristics that exhibit interspecific variation that can be used in the taxonomy of the genus. Important features to distinguish species were: number of infrarrostral projections; number and shape of the infralabial papillae; size, arrangement, shape and apex of the lingual papillae; shape of the buccal floor arena papillae; number of projections of the ventral velum; shape of the prenarial ridge; choanae arrangement; number and apex of the postnarial papillae; number and shape of the secondary branches on the lateral ridge papilla; buccal roof arena papillae arrangement.
authors.affiliation: Universidade Federal da Bahia, Programa de Pós-Graduação em Diversidade Animal, Departamento de Zoologia, Instituto de Biologia, Campus Universitário de Ondina, Rua Barão de Jeremoabo, s/n, Ondina, CEP 40170-115, Salvador, BA, Brazil; Email: oliveira.rmi@gmail.com.
authors.forename: Marianna Isabella Rosa Rodrigues
authors.initials: MI
authors.lastname: De Oliveira
authors.affiliation: Universidade Federal do Maranhão, Departamento de Biologia, Centro de Ciências Biológicas e da Saúde, Av. dos Portugueses, s/n, Campus do Bacanga, CEP 65085-580, São Luis do Maranhão, MA, Brazil; Email: unknown.
authors.forename: Luiz Norberto
authors.initials: LN
authors.lastname: Weber
authors.affiliation: Universidade Federal da Bahia, Programa de Pós-Graduação em Diversidade Animal, Departamento de Zoologia, Instituto de Biologia, Campus Universitário de Ondina, Rua Barão de Jeremoabo, s/n, Ondina, CEP 40170-115, Salvador, BA, Brazil; Email: unknown.
authors.forename: Marcelo Felgueiras
authors.initials: MF
authors.lastname: Napoli
mesh_terms: D063147:Animal Distribution; D000818:Animals; D002025:Bufonidae / Q000033:anatomy & histology* / Q000145:classification / Q000254:growth & development; D005260:Female; D007814:Larva / Q000145:classification / Q000254:growth & development / Q000648:ultrastructure; D008297:Male; D008855:Microscopy, Electron, Scanning; D009055:Mouth / Q000254:growth & development / Q000648:ultrastructure*