TABLE OF CONTENTS, 



List of abbreviated Titles 



Additions and Corrections 



Errata 



General Introduction . 



PAGE 

 XV 



xvi 



xviii 



xix 



DESCRIPTION OF PREPARED TYPES. 



MAMMALIA. 



1. Common Rat, Mus decumanus , , , . , , i 



2. Skeleton of same . . . . . .,,... . . . 4 



3. Skeleton of Wild Rabbit, Lepus atniculus, var. fera , 9 



4. Vertebrae of same ,..,,.... 14 



5. Upper half of same , . . . , . . . . 17 



6. Duodenum, pancreas, etc. of same ...... 24 



7. Caecum of same . . . . . . . . . 27 



8. Bladder and male genitalia of same , . . . 30 



9. Female genitalia of same . , , , . . . 34 



AVES. 



10. Common Pigeon, Columba livia ....... 46 



11. Skeleton of same . . . . . . . . . 58 



REPTILIA. 



12. Common Ringed Snake, Tropidonotus natrix . . . . 67 



13. Vertebrae of Python sp. ? ........ 72 



AMPHIBIA. 



14. Common Frog, Rana temporaria . , . ... 74 



15. Skeleton of same ... . . . . . . . 79 



PISCES. 



1 6. Common Perch, Perca ftMviatilis . . . . . . .83 



17. Skeleton of same ...... . , . . . 90 



1 8. Vertebrae of Cod, Gadus morrhua ...... 99 



UROCHORDA. 



19. Ascidian, Ascidia affinis , , . . ...102 



GASTROPODA. 



20. Shell of Edible Snail, Helix pomatia , . . . . 107 



21. Heart and respiratory chamber of same . . . . . 109 



22. Digestive and reproductive organs of same . . . . .113 



23. Nervous system of same . . . . . . . .119 



