Tompot blenny inquisitive and are often seen by scuba divers. Tompots are usually a deep brown/orange, and are distinguished by a pair of lappets (tentacles) above the eyes and seven or more darker stripes along the body. It feeds on sea anemones or crustaceans. As most fish, tompots harbour several species of parasites, including the capillariid Nematode "Pseudocapillaria bainae". This parasite has been found in the intestine of specimens caught off Italy and Montenegro. Its biology is unknown. Tompot blenny The tompot blenny ("Parablennius gattorugine") is a medium-sized blenny growing to about , part of the large family of blennies that live
Round goby invasive nematode "Anguillicoloides crassus". In the Vistula Lagoon, the most abundant parasites of the round goby are nematodes "Hysterothylacium aduncum" and "Anguillicoloides crassus". 25 species of parasites are noted in the round goby in the Great Lakes. The trematode "D. spathaceum" is most abundant core species overall. Also the cestode "Proteocephalus" sp. and the trematode "Neochasmus umbellus" are rather abundant. The round goby may circumvent more of the metacercariae of "N. umbellus" from completing their life cycle. The parasite “load” on the invasive gobies in the Great Lakes appears relatively low in comparison with their native habitats, lending support to