546 PROTOZOOLOGY 



Genus Charon Jameson. Two caudal ciliary zones; in colon of 

 horse or in stomach of ruminants. 



C. equi Hsiung (Fig. 249, i). 30-48m by 10-14^; in colon of 

 horse. 



References 



Lackey, J. B. 1925 The fauna of Imhoff tanks. Bull. N. J. Agr. 



Exp. Stat., No. 417. 

 Lucas, Miriam S. 1932 A study of Cyathodinium piriforme. 



Arch. f. Protistenk., Vol. 77. 

 Lynch, J. 1929 Studies on the ciliates from the intestine of 



Strongylocentrotus. 1. Univ. Calif. Publ. Zool., Vol. 33. 



1930 n. Ibid., Vol. 33. 



Powers, P. B. A. 1933 Studies on the ciliates from sea urchins. 



I, n. Biol. Bull., Vol. 65. 

 1935 Studies on the ciliates of sea urchins. Papers from 



Tortugas Lab., Vol. 29. 

 Wenrich, D. H. 1928 Eight well-defined species of Paramecium. 



Trans. Amer. Micr. Soc, Vol. 47. 



