PLANKTON OF THE JAPANESE COAST. 



I49 



Fig. 28. Prorocentrum micans Ehrb. ? From Prov. Tosa, x 390. 



a, shell devoid of contents. 



b, another specimen with contents. 



Plate V. 



Fig. 29. Pyrocystis pseudonoGtiluca Murr. From Prov. Böshyü. X97. 

 Fig. 30. P fusiformis Murr. From Prov. Böshyü (May, 23, 1905). 

 Fig. 31. P. lanceolata Schröder. From Prov. Tosa. 



Cell, x 97 ; above, an extremity magnified 600 times. 

 Fig. 32. P. lunula Schutt. 



a and c, from Prov. Tosa, x 220 ; b, from Prov. Isé, X 600. 

 Fig. 33- P. hamulus Cleve. From Prov. Tosa. X97. 

 Fig. 34. Blepharocysta splendor maris Ehrb. From Prov. Tosa, x 390. 



a, body seen from below ; b, ventral view of same ; c, dorsal 

 view of same ; d, apical view of same. 

 Fig« 35 Gonyaulax polyedra Stein. From Prov. Tosa. X220. 

 Fig. 36. Peridinium conicum (Gran.) Ostf. and Schm. From Prov. 

 Tosa, x 390. 



Fig. 37. P. tumidum Sp. nov. From Prov. Tosa. 

 a, x 220 ; b — e, X 97. 

 a and d, dorsal view. 



b and c, ventral view of same ; c, right side view of same. 

 Fig. 38. P. elegans Cleve. From Prov. Tosa. 



a, ventral view showing the membranous list, /; k 220. 



b, dorsal view of another specimen ; x 390. 



c, side view of same ; X 390. 



Fig. 39. P. diabolus Cleve. From Prov. Tosa x 220. 



Fig. 40. Dinophysis homunculus Stein f. pedunculata Schm. 



a, one of th- two jointed together ; from Prov. Böshyü ; X 390. 



b, more robust form, with 1-3 teeth-like elevations on the 



lower extremities, c and d ; from Prov. Tosa ; x 390. 



