2, Cephalophora; Cephalopoda. 
Ordo 2. Siphoniphora, d'Orbign. 
Fam. 1. Spirulaceae, d'Orbign. 
Spirula, Lam. 
Peroni, Lam. (Nautilus spirula, L.)- 
Fam, 92. Nautileae, d'Orbign. 
Nautilus, L. 
pompilus, L.  * 
Lituitus, «bam: Mee : 
Orthoceratites, Breyn., Lam. 
Fam. 3. A4mmoniteae, Lam. 
Baculites, Lam. 
Hamites, Sow. (Ammonoceratitis, Lam.) 
Scaphites, Sow. 
Ammonites, Br. Lam. (Orbulites, Lam.,Globites, Go- 
niatites, Planites, Ammonites et Ceratites, 
Haan.) 
Turrilites, Lam. (Turrites, Haan.) 
M 
Fam. t. Peristolata, (Péristellées , d'Orbign.) 
Ichthyosarcolithes, Desmarest. (Rhabdites, Haan.) 
Belemnites, Cuv. (Belemnites, Rhaphanister et al. 
Ordo5. Trematophora, (Foraminiféres, d'Orbign.) 
Fam. 1, Stichostegeae , d'Orbign. 
Nodosaria, Lam. 
Lingulina, d'Orbign. 
Frondicularia, | — 
Iümulina, — 
Vaginulina, SUN 
Marginulina, — 
Planularia, — 
Pavonina, L— 
