Clavelinidae is a family of tunicates in the order Aplousobranchia.

As of 2024[update], WoRMS recognizes the following genera in the family Clavelinidae:[2] Pycnoclavella has occasionally been placed in a separate family, Pycnoclavellidae, although phylogenetic studies have recovered it as a relative of Clavelina.

In multiple analyses, the monotypic genus Nephtheis appears to branch from within Clavelina.

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