Fish have parasites too!

This website is to give hard to find information about a rare parasite called Lironeca vulgaris. If you are from the west coast, you may have heard of or recognize this organism.

Lironeca vulgaris is a parasitic isopod that feeds on the gills of fish. They are mainly found in freshwater on the coast of California.

We hope you find the information useful and interesting.

Lironeca vulgaris is on the right and middle. Pic by Austin Thompson.

For other organism website go to To find out more about the University of Wisconsin La Crosse, go to the UWL website.