Pareiorhaphis lophia[1] is a species of catfish in the family Loricariidae.

It is native to South America, where it occurs in the Paraguaçu River basin in Brazil.

It is typically found in shallow rocky stretches of coastal blackwater rivers, including rapids.

The species reaches 8.2 cm (3.2 inches) in standard length and is believed to be a facultative air-breather.

[2] This article relating to Neoplecostominae is a stub.