Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Megaclassis: Osteichthyes
Superclassis/Classis: Actinopterygii
Classis/Subclassis: Actinopteri
Subclassis/Infraclassis: Neopterygii
Infraclassis: Teleostei
Megacohors: Osteoglossocephalai
Supercohors: Clupeocephala
Cohors: Otomorpha
Subcohors: Ostariophysi
Sectio: Otophysa
Ordo: Siluriformes
Familia: Pimelodidae
Genus: Duopalatinus
Species: D. emarginatus – D. peruanus
Name
Duopalatinus Eigenmann & Eigenmann, 1888
References
Carl J. Ferraris, Jr., 2007, Zootaxa 1418: 1–628 [1]
Duopalatinus is a small genus of long-whiskered catfishes native to South America.
Species
There are currently two recognized species in this genus:[1]
Duopalatinus emarginatus (Valenciennes, 1840)
Duopalatinus peruanus Eigenmann & Allen, 1942
Duopalatinus is classified under the "Calophysus-Pimelodus clade". Within this clade, it is considered a part of the "Pimelodus-group" of Pimelodids, which also includes Pimelodus, Exallodontus, Cheirocerus, Iheringichthys, Bergiaria, Bagropsis, Parapimelodus, Platysilurus, Platystomatichthys, and Propimelodus.[2]
Duopalatinus species are distributed in South America. D. emarginatus inhabits the São Francisco River basin.[3] D. peruanus is found in the Amazon and Orinoco River basins.[4]
Duopalatinus species grow to about 14–15 centimetres (5.5–5.9 in) SL.[3][4]
References
Froese, Rainer; Pauly, Daniel (eds.). "Species in genus Duopalatinus". FishBase. February 2012 version.
Lundberg, John G.; Parisi, Béatrice M. (2002). "Propimelodus, new genus, and redescription of Pimelodus eigenmanni Van der Stigchel 1946, a long-recognized yet poorly-known South American catfish (Pimelodidae: Siluriformes)" (PDF). Proceedings of the Academy of Natural Sciences of Philadelphia. 152: 75–88. doi:10.1635/0097-3157(2002)152[0075:PNGARO]2.0.CO;2. S2CID 86213152.
Froese, Rainer; Pauly, Daniel (eds.). "Duopalatinus emarginatus". FishBase. June 2007 version.
Froese, Rainer; Pauly, Daniel (eds.). "Duopalatinus peruanus". FishBase. June 2007 version.
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