^70 ZOOLOGT, 



5. Leucophra, Animal ciliated on every part : size as the 



last genus. 



6. Gonium, Animal simple, flat, angular : size as the last. 



7. Colpoda, Animal simple, pellucid, flat, sinuated : size 



as the last* 



8. Paramecium, ^wzwza? simple, pellucid, flattened, obiong : 



size as the last. 



9. Cyclldium, Animal orbicular or oval, siriiple, pellucid, 



flattened : size as the last. 



10. Bursaria. ^?2ma? simple, membraneous, hollow. 



11. Vibrio, Animal ^im^lQy round, elongated: invisible 

 without a Microscope. 



12. Enchelis. Animal simple, cylindrical : size as the last. 



13. Bacillaria. Bodij composed of cylindrical filaments, 

 placed parallel to each other, and often chaogiog their 

 position. 



14. Volvox, Animal simple, pellucid, spherical : invisible to 

 the naked eye, 



15. Monas, Animal oi the most simple form, being a mere 

 point, quite pellucid, and invisible without the aid of a 

 good Microscope. 



