Loricariidae

Loricariidae is a family of South and Central American catfishes distinguished by bony body plates and, in many species, a ventral sucker-like mouth.

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Siluriformes: Siluriformes is the order of ray-finned fishes known as catfishes, characterized by barbels and other diverse adaptations. Loricariidae is one of the most species-rich families within this order.
Aufwuchs: The mixture of algae, microbes, and small invertebrates growing on submerged surfaces. Many loricariids graze this surface growth using scraping teeth.
Common pleco: Pterygoplichthys pardalis, a large armored catfish widely sold for aquariums. Its popularity illustrates how a loricariid can become a burdensome release or escape.
Hypostomus plecostomus: A species of loricariid catfish native to tropical South America. Its name is often applied loosely to aquarium plecos, despite frequent misidentification.
Fish taxonomy: The classification and naming of fish species and their evolutionary relationships. Loricariid genera and species continue to be revised as new evidence accumulates.
Suckermouth: A suction-adapted mouth used by some fishes to attach to surfaces or collect food. Many loricariids use this mouth structure to cling to substrates and feed.
Suctorial disc: A specialized oral structure that creates suction for attachment to a surface. In loricariids, the modified lips form a disc that helps resist currents.
Zebra pleco: Hypancistrus zebra, a striped loricariid endemic to Brazil's Xingu River basin. Its specialized care and restricted range make it a prominent conservation concern in aquariums.
Panaque nigrolineatus: A South American loricariid known for feeding on wood and possessing robust teeth. It exemplifies an unusual diet within the family, though it also consumes other material.
DNA barcoding: Species identification using short, standardized DNA sequences. It can help distinguish traded loricariids whose appearance or labels are misleading.