Round goby Round goby The round goby ("Neogobius melanostomus") is a euryhaline bottom-dwelling goby of the family Gobiidae, native to central Eurasia including the Black Sea and the Caspian Sea. Round gobies have established large non-native populations in the Baltic Sea, several major Eurasian rivers, and the North American Great Lakes. Round gobies are small, soft-bodied fish, characterized by a distinctive black spot on the first dorsal fin. Their eyes are large and protrude slightly from the top of the head and, like most gobies, round gobies have pelvic fins that are fused to form a single disc on the belly of
Blackeye goby Blackeye goby The blackeye goby ("Rhinogobiops nicholsii") is a species of true goby in the family Gobiidae. It is the sole species classified under the genus Rhinogobiops. They are common inhabitants of coral reefs and rocky habitats along the Eastern Pacific Ocean coasts of Mexico, the United States, and Canada, though they are hardly noticed, as they often rest motionless near their shelters. Other common names for the species include bluespot goby and crested goby. Blackeye gobies range in color from creamy white to a mottled dark purple-brown, but can easily be recognized by the distinctive black spot on their