Morphological analysis of the pharyngeal jaws in two populations of Lebias fasciata Valenciennes, 1821 (Teleostei: Cyprinodontidae).
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.
Tigano
C
C
Department of Animal Biology, Catania University, Catania, 95124, Italy. TIGACONC@mbox.unict.it
Ferrito
V
V
Nicosia
R
R
D000818:Animals; D001934:Branchial Region / Q000033:anatomy & histology*; D003532:Cyprinodontiformes / Q000033:anatomy & histology*; D003817:Dentition; D005260:Female; D005843:Geography; D007568:Jaw / Q000033:anatomy & histology*; D008297:Male; D010641:Phenotype