PLATE 5 

 (Camera lucida drawings from whole mounts) 



Fig. 6. Diplodinium ecaudatum forma caudatum Fiorentini. From left side. 

 X 700. 



Fig. 7. Diplodinium ecaudatum forma hicaudatum forma nova. From left 

 side. X 700. 



Fig. 8. Diplodinium ecaudatum forma tricaudatum forma nova. Posterior 

 one-fourth of body from left side. X 700. 



Fig. 9. Diplodinium ecaudatum forma quadricaudatum fdrma nova. From 

 left side of body. X 700. 



Fig. 10. Diplodinium ecaudatum forma cattanei. From right side of body. 

 X 700. 



Abbreviations 



sp. 1 — primary spine. 

 sp. 2 — secondary spine. 

 sp. 3 — tertiary spine. 

 sp. 4 — quaternary spine. 

 sp. 5 — quintary spine. 



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