Duopalatinus Explained

Duopalatinus is a small genus of long-whiskered catfishes native to South America.

Species

There are currently two recognized species in this genus:

• 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.^[1]

Duopalatinus species are distributed in South America. D. emarginatus inhabits the São Francisco River basin. D. peruanus is found in the Amazon and Orinoco River basins.

Duopalatinus species grow to about 14 - 15 centimetres (5.5 - 5.9 in) SL.

Notes and References

1. Propimelodus, new genus, and redescription of Pimelodus eigenmanni Van der Stigchel 1946, a long-recognized yet poorly-known South American catfish (Pimelodidae: Siluriformes). Lundberg. John G.. Parisi, Béatrice M.. Proceedings of the Academy of Natural Sciences of Philadelphia. 152. 75–88. 2002. 10.1635/0097-3157(2002)152[0075:PNGARO]2.0.CO;2. 86213152 .