EXPLANATION OF PLATES 



PLATE 3 



Diplodinium. ecaudatum forma ecaudatum Fiorentini 

 (Camera lucida drawings) 



Fig. 1. View of right side of body, showing surface markings, underlying 

 structures shown in outline. X 1400. 



Fig. 2. View of left side of body, showing surface markings, underlying 

 structures shown in outline. Same animal as figure 1, viewed from opposite side. 

 X 1400. 



Abbreviations 

 ador. m. 0.— adoral membranelle zone. 

 ant. c. V. — anterior contractile vacuole. 

 D. — dorsal surface of the body. 

 d. m. z. — dorsal membranelle zone. 

 I. sTc. a. — left skeletal area. 

 mac. — macronucleus. 

 ■^ mic. — micronucleus. 



post. c. V. — posterior contractile vacuole, 

 r. sTc. a. — right skeletal area. 

 V. — ventral surface of the body. 

 V. sk. a. — ventral skeletal area. 



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