CILIATE PROTOZOA 



41 



FIG. 9. Various forms of Ciliate Protozoa (Infusoria), highly magnified. 

 (From Haeckel's " Kunstfonnen der Natur.") 



1 Codonella ; 2, 3, Dictyacysta (shell only) ; 4, Tintinnopsis (shell only) ; 5, Cyttaro- 

 cyclis (shell only); 6, Petalotricha (shell only); 7, 8, Stentor ; 9, Freia ; 10, Vor- 

 t'iccUii ; 11, 12, Carcliesium ; 13, Epistylis ; 14, 15, Zoothamnium. 



