Paracanthopoma parva is a species of catfishes (order Siluriformes) of the family Trichomycteridae.

[1] P. parva grows to about 2.7 centimetres (1.1 in) SL and is endemic to Brazil where it occurs in the Amazon and Essequibo River basins.

[2] Paracanthopoma parva has been found on the gills of another species of giant catfish, Brachyplatystoma vaillanti.

Also, most vandelliine candirus take blood from the gill region of their hosts.

[3] An undescribed species of Paracanthopoma has been found to ride Zungaro zungaro catfish; their snouts were buried up to the eyes in the tough skin on the host's caudal and pectoral fins, as well as the base of the dorsal fin.