PISCES 375 



6. What is known of the habits of the lung-fishes calculated to suggest how the 

 lung may be of value in preserving the life of the animals? 



7. Migrations among fishes. 



8. Parental care among fishes. 



9. The number of eggs produced by various species. 



10. Study figures showing the embryology of the salmon or other bony fish. 



11. The blind fishes found in caves. What are the principal facts concerning 

 them, and what explanations have been offered to account for their habits and 

 modifications. 



12. Collect all the data possible concerning the flat-fishes. 



13. Examine all the figures of fishes found in your library, and make note of 

 the chief points of variation and the range of these. 



