PLATE XI. [PAGE 150.] 



ROTATORIA, INFUSORIA, &c. 



Fig. 



1. Anguillula (Dorylaimus), species 



of. 



2. Rotifer vulgaris'. a, jaws and 



teeth; b, antenna; 2*, wheel- 

 organ expanded. 



3. Pterodina patina. 



4. Floscularia ornata. 



5. Hydra viridis. 



6. Arcella vulgaris. 



7. Arcella aculeata. 



8. Arcella aculeata, shell with ani- 



mal. 



9. Arcella dentata. 

 10. Amoeba diffiuens. 



12. Actinophrys sol. 



13. Sponge, fibres of; 13 a, 5, c, spi- 



cules of Sponge. 



14. Sertularia pumila, polypidom. 



15. Sertulana pumila, polypidom with 



16. Manas lens. 



17. Cercomonas globulus. 



18. Cercomonas crassicauda. 



19. Heteromita ovata. 



20. Anthophysa Mulleri. 



21. Dinobryon sertularia. 



22. Trachelomonas volvocina. 



23. Chcetoglena volvocina. 



24. Euglena viridis. 



Fig. 



25. Astasia hcematodes. 



26. Enchelys nodulosa ; a, undergoing 



transverse division. 



27. Oxytricha gibba] 27 , side view. 



28. Paramecium aurelia : a, contrac- 



tile vesicle ; b, a gastric sacculus. 



29. Amphileptus fasciola. 



30. Colpoda cucullus: a, contractile 



vesicle. 



31. Nassula elegans : a, vesicle ; 31 b, 



encysted form. 



32. Coleps hirtus. 



33. Vaginicola crystallina. 



34. Vorticella convallaria : a, stalk spi- 



rally contracted ; b, body^ under- 

 going longitudinal division. 



35. Vorticella convallaria encysted and 



discharging the young brood. 



36. Vorticella convallaria, body with 



nucleus (a). 



37. Chilodon cucullulus. 



38. Stentor polymorphus : a, body ex- 



tended; b, body contracted; 

 C) bodies aggregated around a 

 globule of jelly; d, bodies ad- 

 herent to the side of a glass. 



39. Alyscum saltans. 



40. Podophryafixa, or the Podophrya- 



form of Vorticella. 



