Marionia cabindae is a species of sea slug, a dendronotid nudibranch, a marine gastropod mollusc in the family Tritoniidae.[1]
This species was described from West Africa. The type material consisted of one specimen taken at -5.65°N 12°W, at a depth of 40 m, on 14.10.1948, twelve miles W.S.W. of Cabinda, and one taken at -5.8°N 15°W at a depth of 30-35 m on 16.10.1948, seven miles S.W. of Pointe Ngelo.