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Morphological analysis of the pharyngeal jaws in two populations of Lebias fasciata Valenciennes, 1821 (Teleostei: Cyprinodontidae)

✍ Scribed by C. Tigano; V. Ferrito; R. Nicosia

Publisher: John Wiley and Sons
Year: 1999
Tongue: English
Weight: 278 KB
Volume: 241
Category: Article
ISSN: 0362-2525
DOI: 10.1002/(sici)1097-4687(199908)241:2<107::aid-jmor1>3.0.co;2-0

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✦ Synopsis

The study of the pharyngeal jaws in two geographically isolated Italian populations of Lebias fasciata indicated the presence of two phenotypes: the Adriatic phenotype with a large ceratobranchial V and upper and lower pharyngeal jaws bearing few large teeth and the Sicilian phenotype with a smaller ceratobranchial V and pharyngeal jaws with smaller and more numerous teeth. The morphological variations of pharyngeal jaws should be interpreted as a result of the geographical isolation of these two populations.