REPORT OR THE HETEROPODA. 
51 
Pterotracliea desmarestina, 22. 
edwardsii, 16. 
( Firoloidci ) desmarestia, 22. 
( Firoloida ) desmarestiana 22 
(Firoloida) eydouxii, 23. 
(Firoloida) sp., 25. 
forskalia, 14. 
frederica, 14, 16. 
gibbosa, 14. 
hippocampus, 16. 
hyalina, 12, 16, 17. 
keraudrenii, 17, 22. 
lesueuri, 15. 
lophyra, 32, 33. 
mutica, 15. 
navigera, 32. 
Pterotracliea, n. sp., 5, 18. 
peronia, 13. 
puimonata, 12, 18 
quoyaua, 16. 
rufa, 15. 
scutata, 17. 
umbilicata, 16. 
Fterotracheacea, 10. 
Pterotrachees, 9, 10. 
Pterotracheidse, 9, 10. 
Pterotraclieoidee, 9. 
Ptrachida, 9. 
Spinalis rostralis, 41. 
Steira, 38. 
lamanoni, 44. 
Urobranchia, 7. 
Jao/v\j < yi 
