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- Title
Systematics of the genus M ayazomus ( Arachnida: Schizomida): the relevance of using continuous characters and pedipalp setae patterns to schizomid phylogenetics.
- Authors
Monjaraz-Ruedas, Rodrigo; Francke, Oscar F.
- Abstract
The schizomid genus M ayazomus Reddell & Cockendolpher, 1995, endemic to south-eastern Mexico, currently comprises seven species. It was originally proposed to accommodate two species, from Chiapas and Tabasco. Recently, five additional species from Chiapas were described. The monophyly of the genus has never been tested using cladistic analysis. We undertook a phylogenetic analysis using the seven described species of M ayazomus as the ingroup, ten exemplar species representing the most similar New World hubbardiids as the outgroup, and one protoschizomid species to root the tree. The analysis was based on 130 morphological characters (continuous and discrete characters). The resulting topologies recovered M ayazomus as paraphyletic, with H eteronochrus estor Armas & Viquez, 2010, from Guatemala nested within the genus; therefore, we formally propose its synonymy herein. M ayazomus appears to be most closely related to R owlandius Reddell & Cokendolpher, 1995, a South American genus. This contribution also provides new characters derived from the pedipalp setae with important phylogenetic information; as well as the implementation of morphometric ratios, as continuous characters, to partially codify the shape of the male flagellum. The relationships recovered amongst the outgroups used in this contribution are a reliable baseline for future analyses of the phylogeny of the New World schizomids.
- Subjects
BIOLOGICAL classification; ARACHNIDA; SCHIZOMIDA; PEDIPALP; PHYLOGENY
- Publication
Zoological Journal of the Linnean Society, 2016, Vol 176, Issue 4, p781
- ISSN
0024-4082
- Publication type
Article
- DOI
10.1111/zoj.12337