Antiopella cristata, sometimes known by the common name crested aeolis, is a species of nudibranch, a marine gastropod mollusc in the family Janolidae.

[7] In 2019 an integrated taxonomic study reinstated Antiopella and Janolus as separate genera and placed them in the family Janolidae.

These gland lobes divide at the tip of the cerata into numerous terminal branches, distinguishing Janolids from Aeolid nudibranchs.

[10] The white surface colouration that is present on the cerata also appears in patches or lines along the bare central dorsum, as well as around the lamellate rhinophores and on the metapodium.

[15][10] The spawn of this species appear as a light pink or white string forming a wavy, circular pattern.