PLATE 16 



Fig. 38. Ventral view of Gonyaulax scrippsae sp. nov., showing sur- 

 face markings. Channel, San Pedro Harbor, California, May 29, 1901. 

 X 1000. 



Fig. 39. Ventral view of Gonyaulax spinifera (Clap, et Lach.) Diesing 

 sensu strictu. Loring, Alaska, September 15, 1904. X 1000. 



Fig. 40. Ventral view of lightly reticulated individual of Gonyaulax 

 diegensis sp. nov. with wide intercalary bands. New Cod Grounds, San 

 Diego, California, June 23, 1904. X 1000. 



Fig. 41. Postero-dorsal view of theca of Gonyaulax sphaeroidea sp. 

 nov., showing surface structure. Nine miles WSW Point Loma. Califor- 

 nia, surface, November 26, 1904. X 1000. 



Fig. 42. Ventral view of same. 



Figure 38 drawn by Miss Ethel Abeel, figures 39-42 by Mrs. Josephine 

 Michener. 



[284J 



