1912] 



Kofoid-Michencr : Dinosphaera palustris 



25 



Fig. 6. Ventral view of Dinosphaera palustris (Lemm.) Kofoid and 

 Michener. X 1400. From material supplied by Dr. Lemmermann. 



Fig. 7. Apical view of same, somewhat from the dorsal side. X 1-100. 



Fig. 8. Antapieal view of same. X 1400. 



1-6, girdle series of plates, indicated by peripheral figures on fig. 8, 

 and location of sutures between plates by short hea%-y radial lines; l'-3', 

 apical series ; 1", anterior intercalary : l"-6", precingular series ; 1' "-5' ", 

 posteingular series; 1" ", antapieal plate; ant. pi., anterior plate of ventral 

 area; ap., apex; fl. po., flagellar pore; int. pis., intermediate plates of ven- 

 tral area; post, pi., posterior plate of ventral area. The limits of the ventral 

 area are indicated by double lines. 



