The Pareiorhaphis parmula lives in the demersal, freshwater environment.
Pareiorhaphis parmula in a paper in the journal Neotropical Ichthyology. The catfish, which is a member of the Neoplecostominae subfamily, was collected from the headwaters of the rio Iguacu basin in the State of Parana in southern Brazil. More
Pareiorhaphis parmula is the first representative of the genus discovered from the rio Paran More