The armored catfish, Pterygoplichthys pardalis (formerly Liposarcus pardalis), is a freshwater, facultative air-breathing teleost that experiences seasonal hypercapnia in the water systems of South America. Click here to recover it! We report the first record of another suckermouth armored catfish established in southeastern Mexico. You have been logged out successfully! It is native to Brazil and Peru. Summary. There are no visible differences between the sexes. Patents Filed Patent Name: "An Edible Flavor Enhancer From Pterygoplichthys Pardalis" Inventor:Dr. N.S. Introduction Freshwater is an important habitat for many species of fish, including Pterygoplichthys pardalis. Min.