ClipArt ETC
"Diagram of heart and branchial arches in Ceratodus (one of the Dipnoi). a.b., air bladder (lung); p.a., pulmonary artery; p.c., post caval vein (right); p.v., pulmonary vein...a, aorta; au., auricle; c, carotid; c.v., cardinal veins (right and left); d.a., dorsal arteries; j, jugular veins; d.c., ductus Cuvieri; s.v., sinus venosus; v, ventricle." -Galloway, 1915

Queensland Lungfish Heart

"Diagram of heart and branchial arches in Ceratodus (one of the Dipnoi). a.b., air bladder (lung); p.a.,…