Tamanovalva limax Kawaguti & Baban, 1959 (basionym) Berthelinia limax is a species of a sea snail with a shell comprising two separate hinged pieces or valves.

It is a marine gastropod mollusc in the family Juliidae.

[1] The type locality for this species is Seto, Aichi, Japan.

[2] Berthelinia limax is found in Pacific localities such as Japan, Australia, California, Hawaii, Jamaica in the Atlantic, and more recently in the Indian Ocean region.

This Juliidae-related article is a stub.