Revised annotated list of parasites from sea mammals caught off the west coast of North America

Parasite-host and host-parasite lists, with supporting references, of the ecto-and endoparasites recorded from marine mammals of the North American west coast are provided.Excluding records in which the parasites have not been identified to the species level, there are known 15 trematodes, 3 cestodes, 10 nematodes, 7 acanthocephalans, 1 copepod, and 10 amphipods from 22 species of Cetacea; 8 trematodes, 10 cestodes, 12 nematodes, 8 acanthocephalans, 5 anoplurans, and 5 acarines from 8 species of Pinnipedia; and 4 trematodes, 2 cestodes, 1 nematode, 3 acanthocephalans, and 1 acarine from a single species of Carnivora.