TABLE OF CONTENTS. 



PAGE 



List of abbreviated Titles ......,., . xv 



Additions and Corrections xvi 



Errata . ... xviii 



General Introduction . . tt , . xix 



DESCRIPTION OF PREPARED TYPES. 



MAMMALIA. 



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



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



3. Skeleton of Wild Rabbit, Lepus cuniculus, var. fern ... 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 temporaries . . 74 



15. Skeleton of same . . 79 



PISCES. 



1 6. Common Perch, Perca fluviatilis . 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 . IJ 3 



23. Nervous system of same ... .119 



