Osuga
Perciformes - Perches
Salmoniformes - Salmons and Trouts
Esociformes - Pikes
Siluriformes - Catfishes
Cypriniformes - Carps
Acipenseriformes - Sturgeons and Paddlefish
Mugiliformes - Mullets
Anguilliformes - Eels and morays
Gobiiformes - Gobies
Gasterosteiformes - Sticklebacks
Atheriniformes - Silversides
Perciformes - Perches
Salmoniformes - Salmons and Trouts
Esociformes - Pikes
Siluriformes - Catfishes
Cypriniformes - Carps
Acipenseriformes - Sturgeons and Paddlefish
Mugiliformes - Mullets
Anguilliformes - Eels and morays
Gobiiformes - Gobies
Gasterosteiformes - Sticklebacks
Atheriniformes - Silversides
The Osuga (Russian: река́ Осу́га) is a river in Selizharovsky, Kuvshinovsky, Torzhoksky, and Spirovsky districts of Tver Oblast of Russia, a right tributary of the Tvertsa. The Osuga is 167 kilometres long, and the area of its drainage basin is 2,410 square kilometres. The town of Kuvshinovo is along the banks of the Osuga.