278 Animal Biology 



- Mouth 

 Cytopharynx- 



I Cilia 



?- Pellicle 



B 



/ 





••— Mouth 

 ---Cilia 



/ 



/ 



Nucleus 



: Contractile 



~~ vacuole -~ 



Trichocyst- 



Cllla 



Contractile 

 vacuole ' 



Mouth Q 



_^^- Mouth 

 ^-^-Cytopharynx 



Nucleus 



"Pellicle 

 Contractile- 

 vacuole 

 , Cilia — -. 



-Cytopharynx 



Nucleus-- __ 

 -Pelllcle-- 

 Contractlle 

 vacuole 



Cilia 



Nucleus-- 



^ 



— Cytopharynx 



• Nucleus 



Pellicle 



_Contractlle 

 vacuole 



-Pellicle 

 — Cllla- 



/ Food vacuole— ^>;'^«'.r-'y! 



-Cirri 



H 



Contractile 

 vacuole 



Pelllcle-- 

 Cytopharynx-- _^ 



cleus-- -|:i;i^^^ 



Cirri 



Cilia— 

 -Nucleus 



. Pellicle 



Cytopharynx ^ 



Suctorial_ 

 tentacle 



--.Cytopharynx 



"Contractile 



vacuole 

 Stalk 



Fig. 78.— Representative protozoa of the class Infusoria. A, Lacrymaria olor; 

 B, Prorodon griseus; C, Didinium nasutum; D, Lionotus fasciola; E, Urocentrum 

 turbo; F, Frontonia leucas; G, Colpoda campyla; H, Paramecium caudatum; I, 

 Spirostomum ambiguum; J, Stentor sp.; K, Halteria grandinella; L, Stylonychia 

 mytilis; M, Euplotes charon; N, Vorticella campanula; O, Carchesium poly- 

 pinum.; P, Podophrya fixa. Cirri are fused cilia. All protozoan forms are shown 

 enlarged and somewhat diagrammatically. 



