Marble Trout, a freshwater fish that has distinct coloration pattern and a very limited range. The name "Marble Trout" comes (obviously) from its scales, which have a marbled pattern to them. Marble Trout are found only in a handful of rivers and basins in the world. Italy, Slovenia, Croatia, Bosnia and Herzegovina, and Montenegro are the only nations that they are currently found in. They live only in freshwater, and feed on smaller fish and aquatic invertebrates.