Peniculisa

Peniculisa is a genus of marine parasitic copepods in the family Pennellidae.
Biology.
Organisms from this genus are often found attached to the bodies and fins of fishes in the South Pacific and Indian oceans. Individual fishes have been reported to harbor hundreds of "Peniculisa wilsoni" parasites. Infection intensity is rarely cited for other "Peniculisa" species. "Peniculisa" parasitic infections tend to be limited to tetraodontiform and pomacentrid fishes.
Taxonomy.
There are nine recognized species of "Peniculisa":