The fish in the photo was captured in 2004 in the Caqueta River (a tributary of the Amazon found in Colombia), and since then at the Institute of Natural Sciences of the Universidad Nacional de Colombia without knowing it was an unknown animal. It was in 2006 when an expert in this type of fish visited the site and said it was a new species, then the fish was studied and documented, and the discovery was published in 2006 in a scientific journal.
Dato: However, the fish itself was well known to residents of the area, which melted fat inside to candle making.
Since it was found and captured the copy of the photo, is stored in a glass jar along with other species (such as fatty fish Lake Tota, Boyacá found in 1942!). But it has become to find any more since 2004, 5 years ago, so it is thought to be extinct.
Fact: as I read, it seems that fish of this same species (Pterygoplichthys) are used in aquariums to clean the bottom and look, those who have a big mouth and go sticking to walls and the dirt. The truth esque look, but if someone can confirm, thanks!
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