PLATE VII. 



Fig. 13. Ventral view of the same Lepisosteus trista:chus as Figs. 8 and 11. 

 Shows the termination of tlie ventral lymphatic trunk in the pericardial sinuses 

 and the union of the latter in a dorsal pericardial sinus, which lies directly above 

 the bulbus arteriosus and communicates with the inferior jugular above. X !• 



