Keywords: PZSL1907Page214.png Myopotamus coypu <small></small> Myocastor coypus <small> Molina 1782 </small> juv en Thorax region of stillborn Coypu from right lateral partially dissected to show parietal veins Az r azygos vein post c persistent posterior cardinal vein Proceedings of the Zoological Society of London http //archive org/details/proceedingsofzoo19071446zool vol 1907 issue 1 http //archive org/stream/proceedingsofzoo19071446zool page/214/mode/1up page 214 1907 F E Beddard text PD-old PZSL 1907-1 Myocastor coypus anatomy Mammal circulatory system Veins Rodentia juvenile |