PlanetCatfish.com

I have three pictures of catfish species that I cannot figure out. Any help here?
https://www.flickr.com/photos/130281883 ... 700034349/
https://www.flickr.com/photos/130281883 ... 860266266/
https://www.flickr.com/photos/130281883 ... 886182265/

First looks to be some sort of Loricaria species perhaps L. simillima. Second is a Sturisoma sp. Third is Ageniosus sp. Is there a location where these fish were collected?

I think the last is .

They were caught in North East Peru, Near Iquitos

And thank you for the input!