Pinufiidae is a family of sea slugs, specifically nudibranchs, marine gastropod molluscs in the superfamily Fionoidea. Bouchet, P. & Rocroi, J.-P. (2005). Classification and nomenclator of gastropod families. Malacologia. 47 (1-2): 1-397.
In Korshunova et al. (2025), Pinufiidae was not recognized as a family but as a subgroup or 'subfamily' of the family Trinchesiidae. This is due to the type genus Pinufius bearing close relations the trinchesiid PhestillaKorshunova T.; Fletcher K.; Martynov A. (2025). The endless forms are the most differentiated—how taxonomic pseudo-optimization masked natural diversity and evolution: the nudibranch case Zoological Journal of the Linnean Society. Volume 204, Issue 4, August 2025..
References Sea Slug Forum species list