Further contributions to the Hydradephaga (Coleoptera, Haliplidae, Gyrinidae and Dytiscidae) fauna of Prince Edward Island, Canada: new records, distributions and faunal composition Author Alarie, Yves text ZooKeys 2016 600 103 129 http://dx.doi.org/10.3897/zookeys.600.8856 journal article http://dx.doi.org/10.3897/zookeys.600.8856 1313-2970-600-103 97B30DD8F5B34A569C7478C655230D31 97B30DD8F5B34A569C7478C655230D31 Taxon classification Animalia Coleoptera Gyrinidae Gyrinus pugionis Fall Note. Eight specimens were collected from four different localities of Kings and Prince Counties (Table 2). Habitat. Robert (1955) , Morrissette (1979) and Alarie (2009) reported Gyrinus pugionis from peaty or semi-peaty lakes; Robert (1955) mentioned that it invades narrow outflow streams from such lakes. Oygur and Wolfe (1991) reported it primarily (88%) from lentic habitats. In Prince Edward Island, most specimens were collected from lentic habitats (Tables 1-2). Distribution in the Maritime Ecozone. This species was reported from the Provinces of New Brunswick ( Roughley 1991a ; Webster 2016 ) and Nova Scotia ( Roughley 1991a ), and from the Magdalen Islands ( Alarie 2009 ).