Cephiilophora ; Cephalopoda, 



Peneroplis planatus, Montf. (P. dilatata, Blainv. , 

 Cristellaria squamula, planata et dilatata, Lam., 

 Spirolina striata, Willem. , Nautilus semili- 

 tuus, L. , Naut. umbilicatus, L.) 



Spirolina, Lam. 5 Orbign, (Spirolinites, Lam.; Li- 

 tuola s. Lituolites, Lam. 5 Spirula, C^ Blainv.) 



Robulina, Orbi^n. (Polystomella, D, Blainv. ; Lenti- 

 culina, B, E, M, Blainv.; Phonemus, Pharamum, 

 Herion , Clisiphontes , Patrocles , Lampas, 

 Antenor, Robulus, Rhinocurus, Sphincteru- 

 les, Montf.) 

 calcar, Orbign. (Lenticulina margaritacea, dia- 

 phanea, calcar et araneosa, Blainv. , Nautilus 

 calcar, L.) 



Cristellaria, Lam. (Cristellaria et Saracenaria, Defr.; 

 Linthuris, Oreas, Scortimus , Montf. j Nauti- 

 lus , Lituus 5 Sold. ) 



Nonionina, Orbign. (Lenticulina, C, D, Blainv. ; 

 Polj^stomella , E, F, Blainv. ; Placentula, B, 

 Blainv. 5 Lam. ; Crepidulina , B, Blainv. ; 

 Cristellaria , Pulvinulus, Lam. ; Macrodites, 

 Montf. ? Nonion, Melonis, Cancris , Ilorilus, 

 Chrysolus, Montf.) 



Nummulina, Orbign. (Nummulites, Lam. ; Blainv.; 

 Lenticulina s. Lenticulites , Lam. j Lenticu- 

 lina , A, Blainv. j Helicites , Blainv. ; Came- 

 rina, Br. ; Numulites, Lycophris, Rotalites, 

 Egeon , Montf. ) 



Siderolina, Orbign. (Siderolites, Lam.j Montf.) 



