SOME LITTORAL DIATOMS OF JAPAN. 



17 



Fig. 41, 



Fig. 42 : 



Fig. 43 : 

 a : 



Fig. 44 : 

 a : 



Fig. 45. 



a 



Fig. 46 



a 



Fig. 47 



a 



Fig. 48 



Fig. 49, 



b-d: 



a : cell of Triceratium ( Amphitetras) antediluvianum (Ehr.) 



Grun., viewed a-litlle obliquely. 4xD, Zeiss. 



surface-view of the valve of the same. 4 x E, Zeiss. 



Biddulphia (Eubiddulphia) Biddulphiana (Smith) Boyer. 



4 x D, Zeiss. 



Biddulphia (Eubiddulphia) Tuomeyi Bail. 4 x E, Zeiss. 



surface-view of the valve of the same. 4 x E, Zeiss. 



Biddulphia [Eubiddulphia) Gruendleri A. Schm. 4x B, Zeiss. 



one of cells magnified. 2 x D, Zeiss. 



Bidduiphia (Odontella) reticulata Roper var. inermis Castr. 



4 x E, Zeiss. 



surface view of valve. 4 x D, Zeiss. 



Biddulphia (Odontella) longicruris Grev. var. 4xD, Zeiss. 



side view of another specimen. 4 x D, Zeiss. 



Biddulphia (Odontella) sinensis Grev. 4 x A, Zeiss. 



part of the same. 4 x E, Zeiss. 



one of cells of Isthmia enervis Ehrenb. detached ; m, mucus. 



4xD, Zeiss. 

 a : Cerataulina compacta Ostf. ; one of the cells with chroma- 



tophores and neucleus. 2 x D, Zeiss. 



different views of articulations. 4xE, Zeiss. 



Plate XIII. 



Fig. 50, a : chain of Hemiaulus Heibergii Cleve, viewed from above. 

 4 x D, Zeiss. 



b : gridle-view of the same. 4 x D, Zeiss. 



c : another chain, viewed slightly obliquely. 4 X D, Zeiss. 



d : gridle-view of still another chain. 4 x D, Zeiss. 



e: cells with elongated arms. 4 x E, Zeiss. 



f: the same viewed from above. 4 X D, Zeiss. 



g : another cell. 4 X E, Zeiss. 

 Fig. 51 : Rutilaria edentula Castr. 4 x D, Zeiss. 



a : one of the cells magnified. 4xE, Zeiss. 

 Fig. 52, a : portion of the chain of Khahdonema adriaticum Ktitz. 

 4xE, Zeiss. 



b : portion of the same. 4 x F, Zeiss. 

 Fig. 53 : portion of the chain of Tabellaria (Striatella) unipunctata 



Schiitt. 4 x D, Zeiss. 

 Fig. 54 : Grammatophora marina (Lyngb.) Kiitz. 4 X U, Zeiss. 



