EXPLAl^ATION OF THE PLATES. 521 



PLATE EI. 



Argonautida. 



1. Argonauta liians, Solander. \. China 162 



Teiithidce. 



8. Beloteutliis subcostata, Miinst. f- tJpper Lias, "Wurtemb erg 168 



Belemnitidce. 



6. Belemnites Puzosianus, Orb. i. Oxford Clay, Cbippenbam 173 



6. Belenmitella mucronata, Sby. \. Upper Cbalk, Norwich. . . 175 



9. Conoteuthis Dupiniana, Orb. Neocomian, France ; Gault, 



Folkestone 176 



Sepiada. 



2. Sepia Orbignyana, Fer. |-. Mediterranean 177 



3. [Belosepia) sepioidea, Bl. ^. Eocene, Sussex 177 



4. Spirulirostra Bellardii, Orb. ±. Miocene, Ttirin 177 



7. Beloptera belemnitoides, Bl. |. Eocene, Sussex 177 



Kautilidce. 



10. Kautilus radiatus, Sby. \. Neocomian, Kent 185 



1 1 . bidorsatus, Schl. {upper mandible = Rhynhcolites 



hirundo, F. Biguet). f. Muschelkalk, Bavaria 183 



12. {Aturia) zic-zac, Sby. Eocene, Highgate 189 



16. Clymenia striata, Miinst. Devonian, S. Petherwin 190 



Orthocei'tttida. 



14. Orthoceras Ludense, Sby. (section). ^. Ludlow Rock, Britain 190 



15. Phragmoceras ventricosmn, Stoin. ^. L. Ludlow-rock, Salop 194 

 13. Gyroceras eifeliense, Arch, {section), ^. Devonian, Eifel . . 194 



