Abstract
An overview of shelled pteropod species of the northeast Pacific Ocean, roughly north of 25°N and east of 160°W is presented. For the 34 recognised species (Limacinidae 6, Creseidae 4, Creseidae ? 2, Cuvierinidae 3, Cliidae 6, Cavoliniidae 10, Peraclidae 2, Clionidae 1) a brief description is given enabling identification. Data are based on several museum collections and the existing literature. For all species the original description and most important synonyms are referenced. Locations of type specimens are recorded as far as is known. All species are illustrated, for many species images of living specimens are included. Cavolinia labiata (d’Orbigny, 1835) is designated type species of Orbignyia Adams, 1859.