83 



QUESTIONS ON THE PROTOZOA. 



1. Why is it desirable to separate Amoeba and its allies from the 



true Infusoria ? 



2. Compare Pamphagus with Amoeba and Difflugia. 



3. What are Psorospermise ? 



4. Describe the process of gemmation in Vorticella. 



5. In addition to the true cilia, what other locomotive organs aro 



found among the Infusoria ? 



6. What animal forms were included by J. Miiller in the group Rhi- 



zopoda Radiolaria ? 



7. Mention some of the characters by which Grantia is distin- 



guished from other Sponges. 



8. How are the Polythalamia subdivided by Schultze ? 



9. Into what two sections may the Rhizopoda be divided ? Distin- 



guish between them. 



10. Give examples of Foraminifera which occur in the primary rocks. 



11. What organised beings were included among the Infusoria of 



Ehrenberg ? 



12. By what single anatomical feature may the Infusoria be distin- 



guished from other Protozoa ? 



1 3. Distinguish Polycystina from Foraminifera. 



14. Give some account of the 'aquiferous system' of the Spongidae. 



15. Describe the structure of the seed-like body of Spongilla. 



16. Of what essential structures does the body of an Infusorium con- 



sist? 



17. What is meant by the term * Sarcode ' ? 



18. State briefly what is known concerning the development of the 



Rhizopoda. 



19. What principle guided D'Orbigny in framing his classification of 



the Foraminifera ? 



20. To which of his groups ought Miliolina to be referred ? 

 2.1. Why is his arrangement objectionable? 



G 2 



