Cladus: Eukaryota
Supergroup: Opisthokonta
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Deuterostomia
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Superclassis: Osteichthyes
Classis: Actinopterygii
Subclassis: Neopterygii
Infraclassis: Teleostei
Superordo: Ostariophysi
Ordo: Cypriniformes
Subordo: Cyprinoidea
Familia: Cyprinidae
Subfamilia: Leuciscinae
Genus: Rhinichthys
Species: R. atratulus - R. bowersi - R. cataractae - R. cobitis - R. deaconi - R. evermanni - R. falcatus - R. osculus - R. umatilla
Name
Rhinichthys Agassiz, 1849
Type species: Rhinichthys atratulus
Synonym
Tiaroga Girard, 1856
Vernacular names
Français: Naseux
Rhinichthys, the riffle daces, is a genus of freshwater fish in the carp family (Cyprinidae) of the order Cypriniformes. The type species is Rhinichthys atratulus, the blacknose dace. Rhinichthys species range throughout North America.
The genus contains eight living species, one of which (the loach minnow) is considered Vulnerable. It also includes the extinct Las Vegas dace, which was only first described in 1984 and had disappeared by 1986. The cheat minnow (Pararhinichthys bowersi), a natural hybrid of the longnose dace (R. cataractae) and the river chub (Nocomis micropogon), was formerly placed in this genus, but is now valid under Pararhinichthys.
The riffle daces are a basal lineage in an insufficiently resolved clade of American Leuciscinae. Such a group had been proposed on anatomical evidence, and was verified using mtDNA 12S rRNA sequences.(Simons & Mayden 1997)
Species
Blacknose dace (Rhinichthys atratulus) - (Hermann, 1804)
Longnose dace (Rhinichthys cataractae) - (Valenciennes, 1842)
Loach minnow (Rhinichthys cobitis) - (Girard, 1856)
Las Vegas Dace (Rhinichthys deaconi) - Miller, 1984
Umpqua dace (Rhinichthys evermanni) - Snyder, 1908
Leopard dace (Rhinichthys falcatus) - (Eigenmann & Eigenmann, 1893)
Western blacknose dace (Rhinichthys obtusus) - Agassiz, 1854
Speckled dace (Rhinichthys osculus) - (Girard, 1856)
Umatilla dace (Rhinichthys umatilla) - (Gilbert & Evermann, 1894)
References
Valid species list of genus Rhinichthys on FishBase.
Rhinichthys FishBase.
ITIS: Rhinichthys
Simons, Andrew M. & Mayden, Richard L. (1997): Phylogenetic Relationships of the Creek Chubs and the Spine-Fins: an Enigmatic Group of North American Cyprinid Fishes (Actinopterygii: Cyprinidae). Cladistics 13(3): 187-205. doi:10.1111/j.1096-0031.1997.tb00315.x (HTML abstract)