finned russian

• ребри́стый

  ribbed, costate, finned

• краснопёрый

  red-feathered, red-finned

• крыльчатый

  winged, alate, wing-like

  vane, finned, impeller (as in impeller pump)

• рукопёрые

  lobe-finned fish, sarcopterygians