iv MEMOIRS OF THE UNIVERSITY OF CALIFORNIA 



CHAPTER VII P^Qj. 



Evolutionary development 77 



Relationships 78 



Derivation . . 82 



Development within the group 85 



Structural evolution 89 



Nutrition and evolution 91 



Relations to the Metazoa 93 



CHAPTER VIII 



Distribution 94 



Local distribution 99 



Historical discussion 100 



CHAPTER IX 



Classification of the Dinoflagellata 106 



Subclass Dinoflagellata Biitschli 107 



Key to orders 108 



Order Diniferidae Delage and Herouard emend . 108 



Key to the tribes 108 



Tribe 3. Gymnodinioidae Poche emend. 109 



Discussion 109 



Key to families Ill 



Family 1. Protodiniferidae fam. nov. Ill 



Key to genera 112 



Protodinifer gen. nov. 112 



Description of species with notes on synonymy, history and distribution 112 



Oari/;-;-/i/.s Dujardin 116 



Discussion 116 



Description of species (1) 117 



CHAPTER X 



GjTnnodiniidae Kofoid 120 



Discussion 120 



Key to genera 121 



Hemidinium Stein. 121 



Discussion 121 



Description of species 122 



Awp/ii'rf?mum Claparede and Lachmann 124 



Discussion, history, distribution . 124 



Subgenus Amphidinium subgen. nov 131 



Subgenus Rotundinium subgen. nov 131 



Key to species 131 



Description of species with notes on synonymy, history and distribution 132 



