Marcus, 1963 Flabellina dushia is a species of sea slug, an aeolid nudibranch, a marine gastropod mollusc in the family Flabellinidae.

[3] It was later redescribed from new material from Martinique, the Bahamas and Florida.

[5] Flabellina dushia is a flabellinid with opaque white pigment covering most of the body.

The translucent body is visible through areas at the bases of the tentacles and rhinophores, behind the eyes and bases of the cerata.

The rhinophores and oral tentacles are translucent at the base and covered with opaque white pigment in the outer two thirds.