xlvi 
DIV. II. MOLLUSCA 
CLASS I.— CEPHALOPODA ( continued ). 
Genus. Subgenus. 
III. Belemnites 
IV. Actinocamax, Miller 
Vo Ammonites, Zfrwg. 
1 . 
2 . 
3. 
4. 
5. 
6 . 
7 . 
VI. Camerines,Zfrwg. 
Nummulites, 
Lam . .... 
Ammonites, prop. 
Lam. 
Ceratites, Haan 
Orbitulites, 
Scaphites, Sowerb. 
Baculites, Lam. 
Hamites, Sowerb. 
Turrilites, Montf. 
Siderolithes, Lam. 
Helicostega 
Hel. nautiloida 
Hel. turbinoida 
Hel. ammonoida 
Stygostega 
Enallostega 
Agathistega 
Example of Species. 
These genera , with their 
subdivisions , are all fossil. 
CLASS II.— PTEROPODA. 
The feet, so to speak, or rather the organs of locomotion of this 
class, have the appearance of wings or fins. It constitutes, like the 
last, hut one order. 
Genus. 
I. Clio, Lin 
II. Cymbulia, Per on 
III. Pneumodermon, Cuv 
IV. Limacina, Cuv. 
V. Hyalea, Lam . 
/ 1. Cleodora, prop. 
* 2. Creseis 
VI. Cleodora, Peron . < 3. Cuvieries 
i 4. Psyche 
C.5. Eurybia 
VII. Pyrgo Defiance ......... 
Example of Species. 
. Clio borealis, Lin. 
i Pn. Peronii, Cuv. 
. Clio helicina, Phips. fy Gm. 
Anomia tridentata, Forskall 
9 ? 
» Fossil 
