Josavka River
Perciformes - Perches
Salmoniformes - Salmons and Trouts
Esociformes - Pikes
Siluriformes - Catfishes
Centrarchiformes - Basses and sunfishes
Cypriniformes - Carps
Acipenseriformes - Sturgeons and Paddlefish
Gadiformes - Cods
Clupeiformes - Herrings
Scorpaeniformes - Mail-cheeked fishes
Anguilliformes - Eels and morays
Gasterosteiformes - Sticklebacks
Gobiiformes - Gobies
Syngnathiformes - Pipefishes and Seahorses
Atheriniformes - Silversides
Petromyzontiformes - Lampreys
Perciformes - Perches
Salmoniformes - Salmons and Trouts
Esociformes - Pikes
Siluriformes - Catfishes
Centrarchiformes - Basses and sunfishes
Cypriniformes - Carps
Acipenseriformes - Sturgeons and Paddlefish
Gadiformes - Cods
Clupeiformes - Herrings
Scorpaeniformes - Mail-cheeked fishes
Anguilliformes - Eels and morays
Gasterosteiformes - Sticklebacks
Gobiiformes - Gobies
Syngnathiformes - Pipefishes and Seahorses
Atheriniformes - Silversides
Petromyzontiformes - Lampreys
Jošavka je leva i jedna od najvećih pritoka Vrbanje, u koju se uliva u Čelincu. Nastaje (na 360 m n/v) od dva potoka: Ćetina i Babića potok, koji izviru na severoistočnim padinama uzvisine Tromeđa (404 m) u podnožju masiva planine Uzlomac.
Desne pritoke Jošavke su: Stanikova rijeka, Mlinska rijeka, Jelovača, Mliješnica i Gozna, a leve: Jevđevića potok, drugu čine Prlišnica i Crna rijeka, pa slijede Baserovača, Repušnica i Balatin.
