Title
Hyperostosis in Fishes: An Update With New Species Records
Author
Abstract
Literature reports of hyperostosis are often misleading and have been confused with osteomas, a pathological condition. Hyperostotic bones are known to occur only in bony fishes of the class Actinopterygii, within at least 16 orders, 35 families, 89 genera, and 153 species. They are present almost exclusively in marine fishes and exceptionally in a few extinct freshwater species known from hypersaline environments and one extant cichlid. Hyperostosis is best represented in the family Carangidae where it is known to occur in 53 of approximately 181 valid species. We also provide a synthetic report on what we know and what misconceptions exist regarding hyperostosis. Patterns of hyperostosis are often species-specific but provide no useful phylogenetic information. In species known to develop hyperostosis, it is usually not apparent (non-histologically) in juveniles and typically only becomes fully developed in the largest individuals. The timing of hyperostosis on-set in different bones is often sequential rather than simultaneous across different bones. Most marine Neoteleostei have acellular skeletons but histological observations have shown that in species exhibiting hyperostosis, areas of active remodeling are composed primarily of cellular bone characterized by a rich vascular network and bone-resorbing osteoclasts.
Keywords
Actinopterygiimarine and fossil fishesTilly bones
Object type
Language
English [eng]
Persistent identifier
Appeared in
Title
Journal of Morphology
Volume
285
Issue
11
ISSN
0362-2525
Issued
2024
Publication
Wiley
Version type
Date issued
2024
Access rights
Rights
Rights statement
© 2024 The Author(s)
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