The Acanthophthalmus is a small fresh water fish belonging to the Cobitidae family. Approximately a dozen species of Acanthophthalmusexist, though identification still presents experts with notable difficulties. The name Acanthophthalmus means "that brings a thorn upon its eye" and is accurate as this fish actually presents one hard and spiny thorn upon each of its eyes.
Acanthophthalmus semicinctus is well-known to aquarium lovers who call it "kuhli": this nickname derives from the scientific name of one particular breed, theAcanthophthalmus kuhlii, first described by Georges Cuvier and Achille Valenciennes in 1846. For a long time, the various species