A medium sized Dactylogyrus at 400X and captured with a digital camera on a tripod. Note the four eyespots which delineates Dactylogyrus from Gyrodactylus who has no eye spots. Also note the two huge hooks(anchors) in the ventral end as well as the many little marginal hooks that line the tissue around the anchors. The hooks are notorious for being able to inject pathogenic bacteria deeply into the tissues of the hosts skin, gills and fins. Sorry about the crazy soundtrack, I was watching an expose about televangelists.