PLANKTON OF THE JAPANESE COAST. 



147 



a, body seen from the left side ; x t 7 5 



b, dorsal view of same ; x 97. 



(The extremity of the left antapical horn broken and dilated.) 



Fig. 10. Dictyoclia fibula Ehrb. From Prov. Tosa. x6oo. 



Fig. ir. D. fibula var. stapedia (Haeckel) Lemm. From Prov. 

 Tosa, x 600. 



Fig. 12. Distephanus speculum (Ehrb.) Haeckel v. pentagonus 

 f. armata Lemm. From Prov. Tosa. x 390. 

 a, seen from below, 

 same seen from side. 



Fig. 13. Gonyaulax polygramma Stein. a and b, from Gulf of Isé ; 

 c and d, from Aguwan in Prov. Shima. 



a, ventral view ; x 600. 



b, apical view of same ; x6oo. 



c and d, spores, probably of this species ; x 600. 



Fig. 14. Peridinium Spinulosum Murr, and Whitt. From Prov. 

 Tosa. X 600. 



a, dorsal view. 



b, ventral view of same. 



Fig. 15. Amphisolenia bidentata Schroder. From Prov. Tosa. 



a, entire body ; X 140. 



b, apical portion of body ; x 600. 



c , frontal view of the lower end of body ; x 600. 



d, side view of same ; x 390. 



Fig. 16. Halosphaera viridis Schm. From Shirahama in Prov. 

 Böshyü. 



a, cell in living state ; X 56. 



b, one of chromatophores, moderately magnified. 



Fig. 17. Protocystis xipliodon (Haeckel) Purgert. From Prov. 

 Shima. 



a, body ; X 220. 



b, part of reticulation ; X 600. 



