Template:Yoshinaga1921 Abbreviations table

A., atrium Am., amnion I. Aug., angioblast Ao., aorta A.V.C., atrioventricular constriction A.V.Ca., atrioventricular canal B., bulbus cordis B.V.C., bulboventricular constriction C.M.L., craniomedian limb of the pericardial cavity Co., coelom D.M., dorsal mesocardium D.W.P., dorsal wall of pericardium Eel., ectoderm End., endothelium Ent., entoderm E.O., endothelial offshoot E.T., endothelial tube F.G., foregut F.G.O., foregut opening

Legend Letters for all the Figures

L.P.C., lateral pericardial cavity M.S., intermesocardial space M.C., myocardial cavity Mes., mesoderm M.G., medullary groove M.T., myocardial tube N., notochord P., pericardium P.C., pericardial cavity P.M., pharyngeal membrane P. P. P., pleuropericardial passage Som., somatopleure S.A.C., sino-atrial constriction Spl., splanchnopleure S.R., septum ridge S.V., sinus venosus T.A., truncus arteriosus V.W.F., ventral wall of the foregut