What is "acanthicus"

Acanthicus is a genus of suckermouth armored catfishes native to South America. They are native to the Amazon and Orinoco rivers of South America and possibly in Guyana. The name Acanthicus is derived from the Greek, akanthikos meaning thorny, spiny. Fish of this genus are known as Lyre-tail plecos. A. hystrix may also be known as L155 by the L-number system. These species are found in large rivers. Fish of this genera are omnivorous, juveniles feed on algae and aufwuchs.