Keywords: Walrus on Carta Marina.jpeg Ros marus piscis Odobenus rosmarus rosmarus <small> Linnaeus 1758 </small> en Atlantic Walrus sketch from Olaus Magnus' 1539 Carta marina; figure B-B Detail from the Carta Marina Image Carta Marina jpeg 1539 Olaus Magnus 1490-1557 PD-old-100 Image Carta Marina jpeg full image <gallery> File Walrus 1551 png Derivative from Magnus' 1555 Historia de Gentibus Septentrionalibus etc file PZSL1853Page112 png Derivative from the 1560 addendum to Conrad Gesner's Historiae animalium </gallery> 1539 Carta marina Sea monsters Walruses on maps Odobenus rosmarus rosmarus |