Pinirampus
| Pinirampus pirinampu | |
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| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Siluriformes |
| Family: | Pimelodidae |
| Genus: |
Pinirampus Bleeker 1858 |
| Species: | P. pirinampu |
| Binomial name | |
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Pinirampus pirinampu (Spix & Agassiz, 1829) |
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| Synonyms | |
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Pinirampus pirinampu is a species of catfish (order Siluriformes) of the family Pimelodidae. P. pirinampu is also known as the flatwhiskered catfish.
This species was first described as Pimelodus barbancho; however, this is considered a nomen oblitum. It was then described as Pimelodus pirinampu in 1829. In 1858, the genus Pinirampus was described for this species, in which it is usually classified as the only species. However, P. argentinus has been considered a part of this genus.
This species is found in the Amazon, Essequibo, Orinoco, and Paraná basins.
P. pirinampu may reach a length of 60–75 centimetres (24–30 in) and an average weight of 3–5 kilograms (6.6–11 lb). This species has a maximum published weight of 7.68 kg (16.93 lb). These fish reach sexual maturity at just under 60 cm (24 in) in length.
P. pirinampu occurs in schools. These catfish feed on benthic animals; they are nonspecialist feeders preying upon fish such as Iheringichthys labrosus and piranha Serrasalmus sp.. In the Amazon basin, these fish are preyed upon by Zungaro zungaro. These fish are known from temperatures ranging from 24 to 29 °C (75 to 84 °F), pH range of 6 to 8, and an alkalinity range of 42 to 142 mEq/L.
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