Biology:Hisonotus acuen
| Hisonotus acuen | |
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Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Siluriformes |
| Family: | Loricariidae |
| Genus: | Hisonotus |
| Species: | H. acuen
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| Binomial name | |
| Hisonotus acuen Silva, Roxo & Oliveira, 2014 [1]
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| Range map for H. acuen | |
Hisonotus acuen is a species of armored catfish from the Xingu River in Brazil .[2]
Etymology
The species name is taken from "acuen", the name used in anthropological literature to refer to the indigenous Xavante people.[2]
Description
The species bears a resemblance to H. chromodontus, being distinguished by the yellow as opposed to reddish-brown color of its teeth and the transparency of the tail fin.[2]
H. acuen grows to a maximum length of 29 millimeters. The head is rounded, with small eyes and round lips.[2]
General body coloration is light brown on the dorsal and yellowish on the ventral surface, the two colors being divided by a brown stripe that runs from the snout to the caudal peduncle. The fins are transparent with brown dots on the rays. The tail fin is transparent except for a dark spot at the base.[2]
Males have a genital papilla, a feature missing in females.[2]
Features can vary widely among populations, with the most variation occurring in the body's depth at the dorsal fin and in the snout and abdomen length.[2]
Range and habitat
H. acuen is found in small streams that are part of the Xingu River basin in Matto Grosso, Brazil . Individuals are usually found in shallow, slow flowing water. Streams they inhabit are usually flat-bottomed and clear, with vegetation covering the streambed.[2]
References
- ↑ "Hisonotus acuen Silva, Roxo & Oliveira, 2014". http://zoobank.org/NomenclaturalActs/12454B4D-E9CA-4A89-A307-B77A703308C9. Retrieved 22 April 2015.
- ↑ 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 da Costa e Silva, Gabriel; Roxo, Fabio; Oliveira, Claudio (25 September 2014). "Hisonotus acuen, a new and phenotypically variable cascudinho (Siluriformes, Loricariidae, Hypoptopomatinae) from the upper rio Xingu basin, Brazil". ZooKeys (Pensoft) (442): 105–125. doi:10.3897/zookeys.442.7870. PMID 25349492. PMC 4205499. https://zookeys.pensoft.net/articles.php?id=4108. Retrieved 1 October 2014.
Wikidata ☰ Q18349593 entry
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