PROTOZOA 



^vest. 



^--myn 



Fig. 2. 



Fig. I. 



Fig. I. Two species of Actneta, x loo. After Saville-Kent. A, A. grandts. 

 B, A. lemnarum. 



Fig. 2. Vorticella: a generalized figure of an individual, magnified, with a 

 portion of the stalk further enlarged, c.vac. contractile vacuole; ci. outer 

 ciliary wreath; ci.' inner wreath, of the peristome; cu. cuticle] f.vac. food 

 vacuole; ?neg. meganucleus; mi. micronucleus ; myn. myonemes of bell; myn/ 

 myoneme of stalk (containing elastic fibrils); pel. pellicle; ph. "pharynx" 

 (terminal portion of vestibule); ppm. protoplasm of stalk; pst. peristome; 

 res. reservoir; i/.?He. undulating membrane; vest, vestibule. 



