Redescription of Leposternon octostegum (Duméril, 1851), with an identification key for Brazilian Leposternon species, remarks on meristic methodology, and a proposal for pholidosis nomenclature (Squamata: Amphisbaenidae)

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José Duarte de Barros-Filho
Marco Antonio de Freitas
Thais Figueiredo Santos Silva
Mariana Fiuza de Castro Loguercio
Maria Celeste Costa Valverde


The amphisbaenian Leposternon octostegum (Duméril, 1851) is redescribed based on newly collected material from the state of Bahia, Brazil.  Species validity was confirmed, and comparisons made to other Leposternon species and to the scarce literature available on Leposternon octostegum taxonomy.  Aspects of meristic annuli methodology are reviewed, and nomenclatural adjustments for some scales are proposed.  To place this information in its taxonomic context, a species identification key for the Brazilian species of the genus Leposternon is provided.  The present redescription contributes to a better understanding of Amphisbaenia taxonomy, thus also enabling the design of more adequate conservation and management strategies for the species belonging to this group.

Article Details

Author Biography

José Duarte de Barros-Filho, Universidade Estadual do Rio de Janeiro, Instituto de Biologia Roberto Alcântara Gomes, Departamento de Zoologia, Laboratório de Zoologia de Vertebrados, Tetrapoda, PHLC, sl. 522a/515b, Rua São Francisco Xavier 524, Maracanã, CEP 20550-013. Rio de Janeiro, RJ, Brazil.

Departamento de Zoologia, Laboratório de Zoologia de Vertebrados  researcher


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