It is a marine gastropod mollusc in the family Aeolidiidae.

[2] The holotype of this species was collected in Koukura Is, Tuamotu Archipelago, in the central Pacific Ocean.

[3] The body of Baeolidia ransoni is translucent white.

The cerata are overlaid with brown spots, which are groups of zooxanthellae.

[3] Baeolidia ransoni feeds on colonial sea anemones of the genus Palythoa.