The Gyrinidae (Coleoptera) of the Maritime Provinces of Canada: new records, distribution, and faunal composition Author Majka, Christopher Nova Scotia Museum, Halifax, NS, Canada Author Kenner, Rex University of British Columbia, Vancouver ,, Canada text ZooKeys 2009 2009-09-28 22 22 355 372 journal article 10.3897/zookeys.22.216 92568fbc-5aca-4da9-8cc1-1b79de424966 1313–2970 576544 Gyrinus pleuralis Fall, 1922 Gyrinus pleuralis was reported from New Brunswick (as well as Ontario and Québec ) by Roughley (1991) . Oygur and Wolfe (1991) , however, pointed out that this species is easily confused with G. affinis because the variations in body shape and colour overlap. Gyrinus pleuralis is a western species recorded in Canada from British Columbia to Saskatchewan ( Oygur and Wolfe 1991 ). Thus, previous reports of the species from New Brunswick would certainly have been in error and the species is removed from the faunal list of New Brunswick .