Balanus nefrens Armatobalanus nefrens is a species of barnacle in the family Archaeobalanidae.

It is endemic to the United States,[1] where it is found as far north as Monterey Bay.

[3] It lives embedded in the corals Stylaster californicus and Errinopora pourtalesii.

[3] It is listed as Data Deficient on the IUCN Red List.

This Maxillopoda-related article is a stub.