PLATE XVI. 
Page. 
Fig. 
1. 
Spirifer Darwinii, J. Morris — Specimen, with shell preserved, seen 
dorsal side... 
from the 
179 
Fig. 
la. 
The same, seen from the ventral side 
... 
179 
Fig. 
2. 
Sangiiinolites EtheriH(fei,lj. Gr. de Koninck — Imperfect specimen, left valve... 
20G 
Fig. 
3. 
Sanguinolites Mitchellii, L. Gr. de Koninck — Specimen, seen from the side ... 
205 
Fig. 
3a. 
The same, seen from above... 
... 
205 
Fig. 
4. 
Aviciila suhhtmilaia, Jj. G. die ^onmek — Lateral view ... 
... 
242 
Fig. 
5. 
PaJcearca interrupta, L. Gf. de Koninck — Lateral view ... 
... 
22G 
Fig. 
G. 
Palwarca costellata, F. McCoy — Internal cast, lateral view 
225 
Fig. 
G«. 
The same, enlarged ... 

225 
Fig. 
7. 
Lateral view of specimen ... 

225 
Fio-. 
j- Jg, 
7a. 
The same, enlarged ... 

225 
Fig. 
8. 
Palmarca suharguta, L. Q-. de Koninck — Lateral view of specimen 
22G 
Fig. 
8a. 
The same, enlarged ... 

22G 
Fig. 
9. 
Tellinomga Darwinii, L. G. do Koninck — Lateral view of specimen 

224 
Fig. 
10. 
Aviciila Ilardyi, L. G. de Koninck — Lateral view of specimen 

243 
Fig. 
11. 
Pterinea lata, F. McCoy ... 
212 
Fig. 12. 
Pterinea macroptera, J. Morris — Cast of the right valve 

241 
'Pier 
A. 
12rt. 
G’ast of the left valve 
« • t • • * 
241 
