QUESTIONS ON BIVALVES. 



valve, inequivalve, equilateral, inequilateral, and 

 whence are these terms derived ? 



4. What kind of animal inhabits bivalve shells ? 



5. How is the generic character of bivalve 

 shells determined ? 



6. Name the parts of a bivalve shell, and 

 describe the situation of each part. 



7. What is the generic character of the JVIya, 

 and what are its distinguishing marks ? 



8. Describe the manner in which the shell of 

 the Mya Margaratifera is peculiarly suited to 

 the situations it occupies. 



9. What are pearls, and in what kind of shells 

 are they found ? 



10. What is the generic character of the 

 Solen, and how is it distinguished ? 



11. Describe the habits of the Solen. 



12. What is the generic character of the Tel- 

 lina, and its distinguishing mark 1 



13. What is the generic character of the 

 Cardium, and which are its distinguishing marks ? 



14. Which species of the Cardium afford 

 food to the poorer classes ? 



15. What is the general appearance of the 

 Mactrse? 



16. What is the generic character of the 

 Donax 1 



17. What is the generic character of the 

 Venus, and its distinguishing mark. 



18. To what use is the Venus Mercenaria 

 converted? 



19. What is the generic character of the 

 Spondylus ? 



