80 HANDBOOK OF PROTOZOOLOGY 



Order 4 Hypotrichida 385 



Family 1 Peritromidae 385 



Genus Peritromus 385 



Family 2 Oxytrichidae 385 



Genus Oxytricha 385 



Stylonychia 386 



Urostyla 386 



Kerona 386 



Epiclintes 386 



Amphisia 386 



Holosticha 388 



Stichotricha 388 



Uroleptus 389 



Pleurotricha 389 



Gastrostyla 389 



Onychodromus 389 



Actinotricha 389 



Family 3 Euplotidae 389 



Genus Euplotes 389 



Uronychia 390 



Diophrys 390 



Family 4 Aspidiscidae 390 



Genus Aspidisca 390 



Family 5 Psilotrichidae 391 



Genus Psilotricha 391 



Balladina 391 



Order 5 Peritrichida 392 



Family 1 Trichodinidae 392 



Genus Trichodina 392 



Cyclochaeta 392 



Trichodinopsis 394 



Family 2 Vorticellidae 394 



Genus Vorticella 394 



Carchesium 394 



Zoothamnium 395 



Epistylis 395 



Ophrydium 395 



Opercularia 395 



Gerda 397 



Scyphidia 397 



Glossatella 397 



Rhabdostyla 397 



Astylozoon 397 



Hastatella 397 



Cothurnia 397 



Vaginicola 398 



Lagenophrys 398 



