Systematics of the rare Amazonian genus Eutrachelophis (Serpentes: Dipsadidae), with an emended diagnosis for Eutrachelophis papilio

Moraes, Leandro João Carneiro de Lima; Entiauspe-Neto, Omar Machado; Fraga, Rafael de; Fernandes, Igor Yuri; Werneck, Fernanda P.

doi:10.1016/j.jcz.2021.10.003

Cited by 2 publications

(1 citation statement)

References 36 publications

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“…The small sample size of molecular data available for Apostolepis precludes us from making general statements on the systematic relationships of the group. Although Apostolepis is recovered as monophyletic by this study and other recent phylogenies (e.g., Zaher et al 2019;Moraes et al 2021), only seven terminals have limited gene fragments available (up to four) for comparison, out of the 34 valid species, and key taxa remain unavailable for comparison. For instance, the monotypic genera Coronelaps Hofstadler-Deiques, 2010 andParapostolepis Amaral, 1930 have not yet been tested under a molecular systematic framework, and their relationships with their close counterparts (Elapomorphus and Apostolepis, respectively) remain hypothesized largely upon morphological characters interpreted as putatively autapomorphic (Lema & Hofstadler-Deiques 2010).…”

Section: Discussionmentioning

confidence: 56%

Unveiling an enigma from the Cerrado: taxonomic revision of two sympatric species of Apostolepis Cope, 1862 (Dipsadidae: Xenodontinae: Elapomorphini) from central Brazil

Entiauspe-Neto

Koch

Guedes

et al. 2022

EJT

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Apostolepis albicollaris and A. cerradoensis are two Elapomorphini snake species, described within a short timespan, from the Cerrado of central Brazil. In their brief descriptions, these two species were diagnosed from congeners largely based on highly variable external morphological characters. Interestingly enough, A. cerradoensis has remained known based on a single specimen since its description. Here, we present a reanalysis of both type specimens, as well as a careful examination of a large series of specimens formerly assigned to these species, based on the comparison of internal and external morphology. We conclude that both species are synonymous, providing evidence for the recognition of A. cerradoensis as a junior synonym of A. albicollaris. Furthermore, an account of its updated diagnosis, morphological variation, geographic distribution, hemipenial morphology, phylogenetic relationships and an osteological description are also provided. We also discuss its conservation status, suggesting that the species is under threat and qualifies to be listed as Vulnerable (VU ab(iii)), considering its rarity, small geographic range, and persistent environmental threats.

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Section: Discussionmentioning

confidence: 56%

Unveiling an enigma from the Cerrado: taxonomic revision of two sympatric species of Apostolepis Cope, 1862 (Dipsadidae: Xenodontinae: Elapomorphini) from central Brazil

Entiauspe-Neto

Koch

Guedes

et al. 2022

EJT

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Hiding in the mists: molecular phylogenetic position and description of a new genus and species of snake (Dipsadidae: Xenodontinae) from the remote cloud forest of the Lost World

Kok,

Means

2023

Zoological Journal of the Linnean Society

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Pantepui s.l. is a remote, biodiverse region of ~400 000 km2 containing at least five endemic reptile genera and a number of ancient vertebrate lineages. Here, we describe an additional endemic snake genus and species, Paikwaophis kruki gen. nov., sp. nov. (Dipsadidae: Xenodontinae), recently collected in the Pantepui cloud forest that sits at the base of the steep cliffs of Roraima-tepui and Wei-Assipu-tepui (table mountains of the Eastern Tepui Chain) in Guyana, South America. Multilocus molecular data strongly support Paikwaophis gen. nov. to be most closely related to Xenopholis Peters, 1869, although both genera are strikingly different morphologically. Osteological and other phenotypic data suggest that Paikwaophis is semi-fossorial; its diet includes minute lizards. Paikwaophis is currently the only known Pantepui endemic snake genus. The immature female holotype is the only known specimen.

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Systematics of the rare Amazonian genus Eutrachelophis (Serpentes: Dipsadidae), with an emended diagnosis for Eutrachelophis papilio

Cited by 2 publications

References 36 publications

Unveiling an enigma from the Cerrado: taxonomic revision of two sympatric species of Apostolepis Cope, 1862 (Dipsadidae: Xenodontinae: Elapomorphini) from central Brazil

Unveiling an enigma from the Cerrado: taxonomic revision of two sympatric species of Apostolepis Cope, 1862 (Dipsadidae: Xenodontinae: Elapomorphini) from central Brazil

Hiding in the mists: molecular phylogenetic position and description of a new genus and species of snake (Dipsadidae: Xenodontinae) from the remote cloud forest of the Lost World

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