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- Title
The Osteology of the Stonecat, Noturus flavus (Siluriformes: Ictaluridae), with Comparisons to Other Siluriforms.
- Authors
Egge, Jacob J. D.
- Abstract
This study provides a complete osteological description of an ictalurid mad tom catfish, the stonecat, Noturus flavus. The stonecat was chosen because of its unique morphology and problematic phylogenetic position. The present study synthesizes new concepts of bone homology and consequent changes in nomenclature with earlier work on ictalurids. Each bone is fully described and illustrated with comments on spatial relationships among different elements, variation among individuals, and comparisons of N. flavus to other ictalurid and siluriform taxa where appropriate. The skeletal anatomy of individuals representing a range of sizes and ontogenetic stages was examined. The coronomeckelian, a bone previously unreported in ictalurid catfishes, is described. Catfish and other halecostome osteologies were surveyed from the literature to provide as much consistency in homology assessment and nomenclature as possible. Understanding and properly assessing homologies across all siluriform taxa is by no means complete. However, this study draws on and utilizes what is currently available to bring together an otherwise disparate literature on bone homologies among siluriform groups and provides a thorough osteological description of a single ictalurid catfish species.
- Publication
Bulletin of the Alabama Museum of Natural History, 2007, Issue 25, p71
- ISSN
0196-1039
- Publication type
Academic Journal