Midas blenny Midas blenny Ecsenius midas, known commonly as the Midas blenny, lyretail blenny or golden blenny, is a species of marine fish in the family Blenniidae. The Midas blenny is widespread throughout the tropical waters of the Indo-Pacific area from the eastern coast of Africa, Red Sea included, to the Marquesan Islands. It grows to a size of 13 cm in length. Its normal color is golden orange but it can adapt its color (mimicry) to match the color of the fishes it mixes with. It shows a black spot near the anus. It is often seen in company of the
Round goby Nord-Ostsee (Kiel) Canal. As of 2010, the westernmost site of round goby occurrence in Europe was the Lower River Scheldt, the tidal zone in the river mouth, and Albert Canal, Belgium. In 2011, the round goby began invading the fresh waters of France: the species appeared in the Rhine River (on the border between France and Germany), and in the French part of the Moselle River. In total, 52 parasite species are registered in the round goby in the native area. Most abundant parasites of the Black-Sea round goby are metacercariae of trematodes of Heterophyidae family, such as "Cryptocotyle concavum",