22 INFUSORIA AND RHIZOPODA, <§. 5. 



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

 ification seeius more natural : 



PBOTOZOA. 



Class Infusoria. 



Organs of locomotion chiefly vibratile. 



ORDER I. ASTOMA. 



Without an oral aperture. 



Family : Astasiaea. 

 Genera : Amblyophis, Eugiena, Chlorogonium. 



Family : Peuidinaea. 

 Genera : Peridinium, GleiLodinium. 



Family : Opalinaea. 

 Genus : Opal'ma. 



ORDER II. STOMATODA. 



With a distinct oral aperture and oesophagus. 



Family : A^orticellina. 

 Genera : Stentor, Trichodma, Vorticella, Epistylis, Carchesium. 



Family : Ophiiydina. 

 Genera : Vagmicola, Cothurnia. 



Family : Enchelia. 

 Genera : Actinophrijs, Leiicophrys, Prorodon. 



Family : Traciielina. 



Genera : Glaucoma, Spirostomum, TracJielius, Loxodes, Chilodon, Phialina, 



Bttrsaria, Nassula. 



Family : Kolpodea. 

 Genera : Kolpoda, Parama;cium, Ampkileptus. 



Family : Oxytrichina. 

 Genera : Oxytricha, StyloJiychia, JJrostyla. 



Family : Euplota. 

 Genera : Euplotes, Himantophorus, Chlamidodon. 



