RESUMO
A third species of Brasilotyphlus, a siphonopid caecilian, is described based on six specimens from two twin mountains in Roraima state, northern Brazil. Brasilotyphlus dubium sp. nov. differs from all other congeners in having a combination of 123-129 primary annuli and 9-16 secondary annular grooves. The first molecular data were generated and analyzed for Brasilotyphlus, and the genus was recovered as monophyletic and nested within a paraphyletic Microcaecilia. The extent of genetic and taxonomic sampling, and moderate phylogenetic support are not considered sufficient enough to place Brasilotyphlus in the synonymy of Microcaecilia.
Assuntos
Anfíbios , Filogenia , Animais , BrasilRESUMO
This paper presents a review of the geographical distribution of Chiasmocleis albopunctata (Boettger, 1885), based on data from literature, scientific collections, and field notes. Our reviewing significantly enlarges the distribution of the species within the Brazilian territory, with new records for the states of Bahia, Maranhão, and Tocantins. Among all species of the genus, C. albopunctata can be considered the one with the widest latitudinal and altitudinal ranges, as well as greater environmental plasticity.
Este trabalho apresenta uma revisão da distribuição geográfica de Chiasmocleis albopunctata (Boettger, 1885), a partir de dados da literatura, coleções científicas e anotações em campo. Os dados aqui apresentados ampliam consideravelmente a distribuição da espécie dentro do território brasileiro, com novos registros para os estados da Bahia, Maranhão, Tocantins. Dentre todas as espécies do gênero, C. albopunctata pode ser considerada a espécie que apresenta maior variação altitudinal e latitudinal, bem como maior plasticidade ambiental.