(Myopsidae.) 



9. Loliginidae < Loliginidae, Ad. I, 35. 



10. Sepiolidae < Loliginidae, Ad. I, 41. 



11. Sepiidae = Sepiidae, Ad. I, 41. 



12. Belosepiidae < Sepiidae, Chenu I, 46. 

 IB. Spirulidae = Spirulidae, Ad. I, 44. 



14. Belopteridae < Spirulidae, Chenu I, 51. 



15. Belemnitidae = Belemnitidae, Chenu I, 46. 



ORDER IL TETRABRANCHIATA. 



(Nautiloidea.) 



# 



16. NotJioceratidae = Nothoceras, Barr. II, 72. 



17. Batlimoceratidae = Batlimoceras, Barr. II, 74. 



* 



18. Troclioceratidae = Troclioceras, Barr. II, 74. 



# 



19. Nautilidae = Nautilus, Barr. II, 128. 



20. Hercoceratidae = Hercoceras, Barr. II, 152. 



21. Gyroceratidae = Gyroceras, Barr. II, 156. 



22. Litidtidae = Lituites, Barr. II, 168. 



23. Phragmoceratidae= Phragmoceras, B. II, 189. 



24. Gomplioceratidae = Gomphocems, B. II, 243. 



25. Cyrtoceratidae = Cyrtoceras, Chenu I, 73. 



26. Orthoceratidae > Orthoceras, Chenu I, 59. 



27. Ascoceratidae 



Ascoceras, Barr. II, 334. 

 AphragmiteSj Barr. II, 366, 

 Glossoceras, Barr. II, 372. 



