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Type: Article
Published: 2019-04-16
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Taxonomic revision of the Erythrolamprus reginae species group, with description of a new species from Guiana Shield (Serpentes: Xenodontinae)

1Laboratório de Herpetologia, Departamento de Zoologia, Museu Paraense Emílio Goeldi, Avenida Perimetral, 1901, PB 399, Terra Firme, Belém, 66017-970, Pará, Brazil. Pós-graduação em Biodiversidade e Evolução, Museu Paraense Emílio Goeldi, Coordenação de Zoologia. Caixa Postal 399, 66017-970, Belém, Pará, Brazil.
Laboratório de Herpetologia, Departamento de Zoologia, Museu Paraense Emílio Goeldi, Avenida Perimetral, 1901, PB 399, Terra Firme, Belém, 66017-970, Pará, Brazil. Pós-graduação em Ciência Animal, Universidade Estadual do Maranhão, Cidade Universitária Paulo VI, Caixa Postal 09, 65055-970, São Luís, Maranhão, Brazil.
Laboratório de Herpetologia, Departamento de Zoologia, Museu Paraense Emílio Goeldi, Avenida Perimetral, 1901, PB 399, Terra Firme, Belém, 66017-970, Pará, Brazil. Pós-graduação em Biodiversidade e Evolução, Museu Paraense Emílio Goeldi, Coordenação de Zoologia. Caixa Postal 399, 66017-970, Belém, Pará, Brazil.
Reptilia Erythrolamprus reginae morphological variation species delimitation hemipenial morphology color pattern

Abstract

We perform a review of the Erythrolamprus reginae species group and putative related taxa (E. dorsocorallinus, E. zweifeli, and E. oligolepis), based on external morphology and hemipenial characters. We infer species boundaries among taxa traditionally associated with this group, recognizing two nominal subspecies (Erythrolamprus reginae reginae and E. r. macrosomus) in the species level. We propose the synonymy of E. r. semilineatus with E. reginae and recognize the validity of the related taxa, such as: E. dorsocorallinus, E. zweifeli, and E. oligolepis. In addition, two specimens occurring in the state Amapá, Brazil, are herein described as a new species. Therefore, we provide an identification key for the species of the group and discuss some of the combination of morphological features useful to delimitate the species of this group, in comparison with other representatives of the genus Erythrolamprus.

 

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