Duopalatinus

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Duopalatinus
Scientific classification
Kingdom: Animalia Phylum: Chordata Class: Actinopterygii Order: Siluriformes Family: Pimelodidae Genus: Duopalatinus Eigenmann & Eigenmann, 1888
Binomial name
Duopalatinus emarginatus (Valenciennes, 1840)
Duopalatinus peruanus Eigenmann & Allen, 1942

Duopalatinus is a small genus of catfishes (order Siluriformes) of the family Pimelodidae. It contains two species, D. emarginatus and D. peruanas.^[1]

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]

[edit] References

1. ^ Ferraris, Carl J., Jr. (2007). "Checklist of catfishes, recent and fossil (Osteichthyes: Siluriformes), and catalogue of siluriform primary types" (PDF). Zootaxa 1418: 1–628. 
2. ^ 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. 
3. ^ ^{a b} "Duopalatinus emarginatus". FishBase. Ed. Ranier Froese and Daniel Pauly. June 2007 version. N.p.: FishBase, 2007.
4. ^ ^{a b} "Duopalatinus peruanus". FishBase. Ed. Ranier Froese and Daniel Pauly. June 2007 version. N.p.: FishBase, 2007.