Alepas pacifica is a species of goose barnacle in the family Heteralepadidae.

Alepas pacifica is a whitish, translucent species of stalked barnacle.

Its plates are lightweight, only partially calcified and much reduced in size.

[2][3] Alepas pacifica is found in tropical and subtropical waters in the Indian Ocean and the Pacific Ocean, its range extending from Australia and Malaysia to China, Japan and the western coast of North America.

In the case of the egg-yolk jellyfish, a group of barnacles may be attached to the outside of the domed top of the bell, looking rather like an article of headwear.