Xenocyprididae,[1] is a family of freshwater ray-finned fishes with a natural distribution in Asia. This taxon, sometimes spelt Xenocypridae, was previoulsy regarded to be a subfamily, Xenocyprinae,[2] of the family Cyprinidae. Cyprinidae sensu lato is now divided into a number of smaller families within the suborder Cyprinoidei, in the orderCypriniformes.[3]
Genera
Xenocyprididae contains the following valid genera:[1]
A potential fossil genus of the Xenocyprinae is Planktophaga from the middle-late Eocene of Vietnam. Although initially classified under the East Asian group of Leuciscinaesensu lato (as Hypophthalmichthys was previously classified under it), it has unique pharyngeal teeth only shared with Hypophthalmichthys, and thus may represent a basal member of the group. Fossil teeth of indeterminate xenocyprines were found from the same site.[4][5]
Taxonomy
Xenocyprididae was previously considered to be a part of the family Cyprinidae, along with the Danionidae, Leuciscidae, Tincidae other related fish taxa. Eschmeyer's Catalog of Fishes place all of these groups, formerly considered to be subfamilies of the Cyprinidae sensu lato in the large, widespread and diverse suborderCyprinoidei, consisting, mainly, of freshwater ray-finned fish.[3] This conforms with the classification adopted by other authorities.[6][7] TThe suborder Cyprinoidei is classified in the order Cypriniformes.[3]
^Thomas J. Near; Christine E. Thacker (2024). "Phylogenetic Classification of Living and Fossil Ray-Finned Fishes (Actinopterygii)". Bulletin of the Peabody Museum of Natural History. 65 (1): 3–302. doi:10.3374/014.065.0101.
