In the Systema Naturae (1758) Linnaeus described seven species now placed in the gastropod family Naticidae. This study documents their identity based on critical re-examination of original descriptions and original specimens in the Linnean Society of London and the Zoologiska Museet of Uppsala Universitet. The six valid species are redescribed; the other is a nomen dubium. Four of the species are type species of currently accepted naticid genera.