UNIVERSITY OF CALIFORNIA PUBLICATIONS 



IN 



ZOOLOGY 



Vol. 8, No. 4, pp. 187-286, pis. 9-17 September 14, 1911 



DINOFLAGELLATA OF THE SAN DIEGO 

 REGION, IV. THE GENUS GONYAULAX, 

 WITH NOTES ON ITS SKELETAL 

 MORPHOLOGY AND A DISCUS- 

 SION OF ITS GENERIC AND 

 SPECIFIC CHARACTERS 



BY 

 CHARLES ATWOOD KOFOID 



(Contributions from the Laboratory of the Marine Biological Association of San Diego) 



CONTENTS 



PAGE 



A. Introduction 188 



B. Material 189 



C. General discussion of the genus - 191 



I. Generic characters 191 



1. Historical discussion 191 



2. Modifications resulting from new data 192 



3. Skeletal plates of Gonyaulax -- 194 



II. Generic diagnosis 196 



III. Comparisons with other genera 397 



IV. Skeletal fission - 199 



V. Subgenera and Species of Gonyaulax 200 



1. Subgenus Gonyaulax subgen. nov 201 



2. Subgenus Fusigonyaulax subgen. nov 201 



3. Subgenus Steiniella subgen. nov 202 



4. Subgenus Acantho gonyaulax subgen. nov 202 



VI. Annotated list of species regarded as synonyms 202 



VII. Indeterminate species 203 



VIII. Species of Gonyaulax described in other genera 203 



IX. Species described in Gonyaulax which belong in other genera 204 



D. Species of Gonyaulax from the coast of California 204 



I. Key to the species of the region 20.5 



