214 University of Calif ornia Puhlications in Zoology. [Vol. 8 



strnetiiral features in so far as represented in their figures. The 

 only disturbing feature in this interpretation is the overrun of 

 the apex upon the dorsal side, perhaps the result of the oblique 

 view suggested by curvature of girdle and occlusion of spines 

 in their figure. It is plainly a Gonyaulax and evidently close to 

 G. spinifera as shown by the size (4:0/x), overhang and displace- 

 ment of girdle, and flare of longitudinal furrow opposite distal 

 end of girdle. The tins on the antapical spines are unusual. 



Distribution : Any discussion of the distribution of this 

 species in the present confused state of records of occurrence is 

 futile. Statements of occurrences can be based only on figures 

 which are plainly G. spinifeva scnsn sfricto or upon records of 

 G. Jevandcyi. Its distribution in California waters is not as yet 

 fully det(^rmined since all of our earlier records include G. digi- 

 tale and to some extent G. (li< goisis under the single caption of 

 G. spill if em. 



It is known to occur in San Pedro Harbor, ]\Iay 31, 1901 

 (No. 505) ; in collections made off San Diego, June 28 (Nos. 130, 

 133) and December 2 (No. 342), 1904; and at Loring, Alaska, 

 September 15, 1905. Claparede and Lachmann (1858-1859) 

 descrilie it from the western coast of Norway. It is reported as 

 Peridinium sp. from the Gulf of Finland by Levander (1894) 

 and by Van Breeman (1905) as Gonyaula.v sp. from the Zuider 

 Sea. It is reported by Paulsen (1907) froni the eastern Baltic 

 and Iceland, and by Ostenfeld (1908) from the Aral Sea. It is 

 described by Faure-Fremiet (1908) as G. mangini from the Bale 

 de la Hougue on the northern coast of France. 



Evidently neritic, and predominantly in northern and tem- 

 perate waters. 



3. Gonyaulax digitale (Pouchet) Kofoid 



PL 9, figs. 1-5. 



Protoperidiiiium digitale, Pouchet (1883), p. 443, pis. 18-19, fig. 14. 



Gonyatdax spinifera, Stein (1883), pp. 13, 16, pi. 4, figs. 10-14. 



G. spinifera, Schiitt (1887), pp. 366-367, pi. 18, figs. 7-11; (1895), 



pi. 9, figs. 34 i.„. 

 Peridinium digitale, Lemmermann (1899), p. 369. 

 Gonyaulax spinifera, Van Breeman (1905), pp. 41-42, figs. 10 a-b. 



