Figures. 
1 
2 a,b. 
3 01 
4 à, b. 
5 a, b. 
Planche XIX. 
ns 
Ovolina elliptica, 
—  trigonula, 
Terebralina regularis, 
Cernuspira liasina, 
Annulina quinqueloba, 
Glandulina pygmea, 
— cuneïformis, 
Frondicularia acuformis, 
Nodosaria crispata, 
Glandulina costata, 
Nodosaria hortensis, 
Frondicularia lignaria, 
— varians, 
— pulchra, 
Nodosaria claviformis, 
Frondicularia lævissima, 
— sacculus, 
Dentalina vermicularis, 
— paucicosta, 
— nodifera, 
— sculpta, 
— fasciata, 
— varians, 
—— evulsa, 
—  funiculosa, 
— arbuscula, 
— sagenula, 
— - multicostata, 
Grossissement, 
40 fois. 
50 — 
25 — 
25! +. 
:99 = 
40° — 
20 — 
25 — 
15 + 
#5 — 
20. = 
40 — 
20 — 
40 — 
40 = 
30 += 
20: 
20 
30 
30 — 
5 or 
20: 
15 + 
= 
15 — 
20 — 
D — 
45 — 
2 — 
U'— 
20 — 
20 — 
