EXPLANATION OE PLATES. 
[NOTE. 
Fig. 1. 
Fig. 2. 
Fig. 3. 
Fig. 3a. 
Fig. 4. 
Fig. 5. 
Fig. 5a. 
Fig. 6. 
Fig. 6a. 
Fig. 7. 
Fig. 7a. 
Fig. 7b. 
Fig. 8. 
Fig. 9. 
Fig. 9a. 
Fig. 9i. 
Fig. 10. 
Fig. 11. 
Fig. 12. 
Fig. 12a. 
Fig. 13. 
Fig. 13a. 
Fig. 11. 
Fig. 14a. 
Fig. 14J. 
■The nomenclature in the plate explanations is retained as in the 
original Work. Recent changes the Reader will find in the form 
of footnotes throughout the text. — W.S.D.] 
PLATE I. 
Page. 
Aulopora fasciculata, L. Gr. de Koninck — Individual, of natural size ... ... 11 
Alveolites rapa, L. Gr. de Koninck — Individual, of natural size, seen from the 
front ... ... ... ... ... ... ... ... ... ... 14 
Striatopora ausfralica, L. G. de Koninck — Specimen of natural size ... ... 15 
„ „ „ — Fmlarged 15 
Pterinea piimila, L. G. de Koninck — Left valve, seen from above, natural size 30 
Euomplialus solariuides, L. G. de Koninck — Specimen, seen from above, natural 
size ... ... ... ... ... ... ... ... ... ... 30 
The same, seen from in front ... ... ... ... ... ... ... 30 
Euomplialus pileiiropliorus, L. G. de Koninck — Specimen, natural size, seen 
from above ... ... ... ... ... ... ... ... ... 31 
The same, seen in elevation ... ... ... ... ... ... ... 31 
Euomplialus Olarkei, L. G. de Koninck — Specimen, in profile, natural size ... 32 
The same, seen from above. . . ... ... ... ... ... ... ... 32 
„ ,, below ... ... ... ... ... ... ... 32 
Encrinurus Barranilei, L. G. de Koninck — Head of natural size ... ... 40 
Oromus Murchisoni, L. G. de Koninck — Head, of natural size, somewhat 
restored ... ... ... ... ... ... ... ... ... ... 43 
A somewhat larger head of another individual ... ... ... ... ... 43 
Pygidium, of natural size, seen from above ... ... ... ... ... 43 
Bronteus goniopeltis, L. G. de Koninck — Pygidium, seen from above... ... 4G 
Alveolites ohscurus, L. G. de Koninck— Specimen of natural size ... ... 59 
Euomplialus nodulosus, L. G. de Koninck — Specimen of natural size, seen in 
elevation ... ... ... ... ... ... ... ., ... ... 97 
The same, seen from above ... ... ... ... ... ... ... ... 97 
Stauroceplialus Clarkei,Jj. G. de Koninck — Decorticated fragment of the head 
of natural size ... ... ... ... ... ... ... ... ... 3G 
Pjgidium, from a gutta-percha cast ... ... ... ... ... ... 3G 
Bliyzophyllum ? interpunctatum, L. G. de Koninck — Internal cast, of natural 
size, seen from the top ... ... ... ... ... ... ... ... 48 
The same, seen from the convex side ... ... ... ... ... ... 48 
5) ,, base ... ... ... ... ... ... ... 48 
