Hemibrycon sanjuanensis
Species of fish
From Wikipedia, the free encyclopedia
Hemibrycon sanjuanensis is a species of characin from the upper San Juan River, Colombia.[1]
| Hemibrycon sanjuanensis | |
|---|---|
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Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Division: | Teleostei |
| Order: | Characiformes |
| Family: | Stevardiidae |
| Genus: | Hemibrycon |
| Species: | H. sanjuanensis |
| Binomial name | |
| Hemibrycon sanjuanensis | |
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| Range of H. sanjuanensis | |
Etymology
It takes its name from the San Juan River, where specimens were collected.[1]
Description
Individuals range between 21.3–84.9 millimetres (0.84–3.34 in) in length. The body is slender and long, with a short, compressed face and flexible lips. In an example of sexual dimorphism, the rays of males' pelvic and anal fins are lined with small hooks.[1]
General coloration is a dark brownish-yellow, with a dark stripe running from directly behind the gills to the caudal peduncle. The ventral surface is light yellow. The dorsum and fins are patterned with melanophores. A reddish spot can be observed on the ventral part of the base of the caudal fin.[1]
Range and habitat
Diet
The species is insectivorous. Among other things, it has been known to eat water scavenger beetles, black flies, flesh flies, damselflies, predaceous diving beetles, caddisflies, nematodes, and isopods.[1]