208 Kathleen K. Ollcer 



Plate XXXIX. 



Fiu'. XIII. — Compiled longitudinal horizontal section of Heleio- 

 porus picfiis, to .^ho^v Synangial valves. 



Fig. XIV. — Triineus Arteriosus of Chiroleptes alboguttatus, to 

 show Synangial valves. 



Fig. XV. — Truncus Arteriosus of i\-otaden benneiti^ to show 

 Synangial valves. 



Fig. XVI. — Truncus Arteriosus of Notaden hennetti^ to show 

 Pylangial valves. 



Fig. XVII. — Longitudinal horizontal section of Truncus Ar- 

 teriosus of Notaden bennetti^ to show Synangial valves. 



Fig. XVIII. — Longitudinal horizontal section of Truncus Ar- 

 teriosus of Pseudophryne se/nhnarinorata to show Synan- 

 gial valves. 



i 



