River catfish River chub River darter River dragonet River garfish River goby River hatchetfish River lamprey River pipefish River Plate sprat River redhorse River sardine River shiner River stone carp River threadfin River tonguesole River Trout Riverine goby Riverine stargazer Riverweed darter Rivulated mutton hamlet Rivulated parrotfish Roach Roach Bream Roanoke bass Roanoke darter Roanoke hog sucker Roanoke logperch Robert’s Sole Robert's blenny Robert's river garfish Roberts’ gurnard Robins' moray Robust armoured-gurnard Robust assfish Robust blenny Robust cardinalfish Robust coralbrotula Robust cusk-eel Robust gambusia Robust icefish Robust jawfish Robust klipfish Robust mangrove goby Robust mora Robust mullet Robust pipehorse Robust pygmy-stargazer Robust ribbongoby Robust smallmouth