Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis Author Linnaeus, Carolus text 1758 Laurentius Salvius Stockholm https://archive.org/download/mobot31753000798865/mobot31753000798865.pdf book 2C6327E1-5560-4DB4-B9CA-76A0FA03D975 https://doi.org/10.5962/bhl.title.542 3922206 Anas bucephala [ spec. nov. ] A. albida, dorso remigibusque nigris, capite supra infraque tumido sericeo nitente. Anas minor, purpureo capite. Catesb. car. 1. p. 95. t. 95. Habitat in aquis dulcibus Americae septentrionalis.