Lopasnya
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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 Lopasnya (Russian: Лопа́сня) is a river in Moscow Oblast in Russia. It is a left tributary of the Oka. It is 108 km in length, with a drainage basin of 1090 km². Its average discharge is 6,76 m³/s.