PERITRICHA 627 



mensal on, or parasitic in, fresh or salt water animals. Several 

 species. 



C. spongillae J. (Fig. 284,/). About 60^ in diameter; in inter- 

 stices of Spotigilla fluviatilis. 



C. domerguei Wallengren (Fig. 284, g). About 55/i in diameter; 

 on freshwater fishes. 



References 



Fulton, Jr., J. F., 1923 Trichodina pediculus and a new closely- 

 related species. Proc. Boston Soc. Nat. Hist., Vol. 37. 



Kahl, a. 1935 Dahl's Die Tierwelt Detdschlands. Part 30. 



Kent, S. 1881-1882 A manual of Infusoria. 



NoLAND, L. E. and H. E. Finley 1931 Studies on the taxonomy 

 of the genus Vorticella. Trans. Amer. Micr. Soc, Vol. 50. 



Penard, E. 1922 Etudes sue les Infusoires d'eau douce. Geneva. 



Stokes, A. C. 1888 A preliminary contribution toward a history 

 of the freshwater Infusoria of the United States. Jour. 

 Trenton Nat. Hist. Soc, Vol. 1. 



