9° 



ALLEN 



Sub. A. Subclavian artery. 



5. V.Abd.M. Superficial ventral abductor muscle. 



5. Ven. Sinus venosus. 



Thyr. Thyroid gland. 



Thyr.L. V. Thyroid lymphatic vessel. 



V.Ao. Ventral aorta. 



Ven. Ventricle. 



Ver.w First vertebra or atlas. 



V.F.L.S. Ventral fin lymphatic sinus. 



V.F.L. V. Ventral fin lymphatic vessels. 



V.F.L. V.(\) Auxiliary ventral fin lymphatic vessels. 



V.L.S. Ventral lymphatic sinus. 



V.L. V. Ventral or abdominal lymphatic trunk. 



V.L. V.(i) Profundus ventral lymphatic trunk. 



V.M.L.V. Ventral fin musculature lymphatic vessel. 



V.M.L.V.(\) Secondary ventral fin musculature lymphatic vessel. 



V.Per.S. Ventral pericardial sinus. 



V.Per.S.(\) Anterior portion of the ventral pericardial sinus. 



Vr. Ventral fin rays. 



X. Connection between the ventral sinus papilla and the posterior 



part of the pericardial sinus. 



Y. Point where the ventral lymphatic trunk pierces the ventral 



wall to empty into the ventral pericardial sinus. 



I to X. Cranial nerves. 



i to 4. Afferent branchial trunks 1 to 4. 



