Wednesday, December 5, 2018

[Herpetology • 2018] Brasilotyphlus dubium • A New Species of Brasilotyphlus (Gymnophiona: Siphonopidae) from mountains in Roraima state, northern Brazil and A Contribution to the Knowledge of the Relationship Between Microcaecilia and Brasilotyphlus


Brasilotyphlus dubium 
Correia, Nunes, Gamble, Maciel, Marques-Souza, et al., 2018


Abstract 
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.

 Key words: Brazil, caecilians, phylogeny, taxonomy


 Brasilotyphlus dubium sp. nov. Specimen from the type series in life in dorsal view.  

Brasilotyphlus dubium sp. nov.

Etymology. The epithet dubium means “dubious”, reflecting our doubt whether or not Brasilotyphlus should be considered a synonym of Microcaecilia. For nomenclatural purposes, the species epithet is considered a noun in apposition.


 Larissa L. Correia, Pedro M. S. Nunes, Tony Gamble, Adriano O. Maciel, Sergio Marques-Souza, Antoine Fouquet, Miguel T. Rodrigues and Tami Mott. 2018. A New Species of Brasilotyphlus (Gymnophiona: Siphonopidae) and A Contribution to the Knowledge of the Relationship Between Microcaecilia and BrasilotyphlusZootaxa. 4527(2); 186–196.  DOI:  10.11646/zootaxa.4527.2.2

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