Scorpiodoras is a genus of thorny catfish in family Doradidae, native to the Orinoco and Amazon drainages of Venezuela and Brazil. The atlas covers 2 species, running 4–6.5 in - a modest size for a doradid. Like other thorny catfish, the body carries rows of bony lateral scutes and the fin spines can be locked erect, a defense that also makes the fish notorious for tangling in nets, and most doradids are nocturnal bottom-dwellers that shelter by day and forage after dark.
This is a genus known mostly to catfish specialists rather than the general aquarium trade, and detailed husbandry accounts are thin. The IUCN picture is incomplete - one species is Not Evaluated and the other Least Concern - which fits a widespread South American catfish genus that has drawn little dedicated conservation survey work rather than one under active threat. For anyone keeping doradids generally, the family's spine-locking habit is worth knowing before ever netting one.