22 INFUSORIA AND IIHIZOPODA. <§> 5. 



orders, Anentera and Enterodcla, appears unfounded, the following class- 

 ification seems more natural : 



r R T Z A . 



Class Infusoria. 



Organs of locomotion chiefly vibratile. 



ORDER I. ASTOMA. 

 Without an oral aperture. 



Family : Astasiaea. 

 Genera : Amblyophis, Eugiena, Chlorogonium. 



Family : Peridinaea. 

 Genera : Peridinium, Glertodinium. 



Family : Opalinaea. 

 Genus : Opalina. 



ORDER IL STOMATODA. 

 With a distinct oral aperture and oesophagus. 



Family : Yorticellina. 

 Genera : Stentor, Trichodi/ia, Vorticella, Epistylis, Carchesium. 



Family : Opurydina. 

 Genera : Vaginicola, Cothurnia. 



Family : Enciielia. 

 Genera : Actinophrys, LeucophrTjs, Prorodon. 



Family: Trachelina. 



Genera : Glaucoma, Spirostomum, Trachelius, Loxodes, Chilodon, PhialincL, 



Bursaria, Nassula. 



Family : Kolpodea. 

 Genera : Kolpoda, Paramcecium, Amphilepttis. 



Family : Oxytrichina. 

 Genera : Oxytricha, Stylomjchia, TJrostyla. 



Family : Euplota. 

 Genera : Euplotes, Himautophorus, Chlamidodon. 



