DISTRIBUTION OF LYMPHATICS IX SCORI'/ENTCHTHYS 



77 



branchial veins for lymphatics, otherwise they would terminate 

 in the jugular and not in the lymphatic trunk that emptied into 

 the cephalic sinus. It will be seen at a glance that this connec- 

 tion of the dorsal lymphatic trunks with the inferior jugular 

 described by Vogt in the salmon is very different from the some- 

 what hypothetical union described above, notwithstanding that 

 both modes of communication occur in the same vicinity. 



KPer.SAO 



&r.S. 



Per.&W 



Fig. io. Same view of another specimen as Fig. 9 in which the interlinking 

 arms of the pericardial and ventral pericardial sinuses had an additional connec- 

 tion (JC) with the posterior portion of the pericardial sinus. Medium size 

 Scorpcznichthys. Natural size. 



Possibly at this point a note should be made in connection 

 with the inferior jugular and its branches. In Scorfamichthys 

 2 inferior jugulars empty into the sinus venosus, a large right 

 and a much smaller left inferior jugular (Figs. 3, 6, 7 and 8, 

 7?. and L.I.J. V.) ; both of which pass along, above and to the 

 side of the ventral aorta, and unite in a common stem directly 

 behind the common trunks of the third and fourth afferent 

 branchial vessels. Perhaps it would have been more accurate 

 to have conversely stated this arrangement by saying that the 

 common stem of the inferior jugular bifurcated behind the com- 

 raoji trunks of the third and fourth afferent branchial vessels, 



