Loricariid catfishes have evolved several modifications of their digestive tracts that function as accessory respiratory organs or hydrostatic organs.
A scientific study of the species found in five locations in the Laguna de Bay tributary system, including the Marikina River, revealed that the specimen of janitor fish previously reported as Hypostomus plecostomus actually belong to the genus Pterygoplichthys, family Loricariidae.
species from the Loricariidae family: plec and pleco are common names which are often used in the aquarium trade
Crossoloricaria variegata is a species of armored catfish native to Panama where it is found in the Mamoni, Tuira and Yape River basins and Colombia where it is found in the San Juan and Sinu River basins.
Dasyloricaria capetensis is a species of armored catfish endemic to Panama where it is found in the Tuira River basin.
Dasyloricaria tuyrensis is a species of armored catfish endemic to Panama where it is found in the Tuira River basin.
Loraxichthys lexa is a species of armored catfish only known from streams and rivers that feed into the Huallaga River near Tingo María, Leoncio Prado Province, Peru.
Sturisomatichthys citurensis is a species of armored catfish of the family Loricariidae endemic to Panama where it occurs in the Tuira and Bayano River basins.