Morphology of scale lepidonts in the genusAphanius(Teleostei, Cyprinodontidae) using SEM

Ferrito, V., Pappalardo, A. M., Fruciano, Carmello, & Tigano, C. (2009) Morphology of scale lepidonts in the genusAphanius(Teleostei, Cyprinodontidae) using SEM. Italian Journal of Zoology, 76(2), pp. 173-178.

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Abstract

The microstructure of the anterior region of the scales in several species of the genus Aphanius was studied by SEM with the aim of determining whether scale morphology could be used to discriminate between the species of this genus. The characters examined concern the morphology of lepidonts, or “scale‐teeth”, their distribution and mode of implantation on the circuli. These characters were also subjected to UPGMA cluster analysis. Results from phenetic analysis of scale‐teeth characters agree overall with those of previously published morphological and biogeographical studies and in part with molecular analysis of the phylogenetic relationships between species of Aphanius. An affinity between A. danfordii and A. mento (found previously in studies based on osteological observations) was seen. The separation of A. apodus from the other species of the fasciatus group, which had also been noticed from molecular observations, was also observed, as well as the affinity of A. ginaonis with the group of A. dispar+A. sirhani. This study demonstrates that scale morphology can provide useful information on the relationships among species of the genus Aphanius encouraging the use of scale characters, combined with other traits, in phylogenetic analyses.

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3 citations in Web of Science®

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ID Code: 87588
Item Type: Journal Article
Refereed: Yes
Keywords: morphology, fish biology, interspecific variation, scale surface, killifish, Osteichthyes
DOI: 10.1080/11250000802555684
ISSN: 1748-5851
Divisions: Current > Schools > School of Earth, Environmental & Biological Sciences
Past > QUT Faculties & Divisions > Faculty of Science and Technology
Copyright Owner: Copyright 2009 Unione Zoologica Italiana
Deposited On: 22 Sep 2015 01:27
Last Modified: 23 Sep 2015 03:22

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