PLATE XXIV. 
Page. 
1. 
Oameroceras PhiUipsi, L. Gr. cle Koninclc — Specimen, seen in profile ... 
273 
Fig. 
2. 
Ortlioceras striatum., J. Sowerby — Anterior portion, entirely composed of the 
body chamber, seen in profile 
271 
Fig. 
2a. 
Posterior portion of the same specimen, seen in profile. . . 
271 
Fig. 
2h. 
Last septum, preceding the body chamber 
271 
Fig. 
3. 
Ortlioceras Martinianum, L. Gr. de Koninck — Specimen, seen in profile 
272 
Fig. 
4. 
Nautilus sulsulcatus“p^ . Piiillips — Portion of the Penultimate whorl of the 
spire, slightly enlarged ... 
273 
Fig. 
5. 
Qoniatites micromplialus, J. Morris — Internal cast, showing the aperture 
2G9 
Fig. 
The same, seen in profile ... 
2G9 
Fig. 
G. 
Entomis Jonesi, L. Gr. de Koninck — Specimen, lateral view 
27G 
Fig. 
Ga. 
The same, enlarged ... 
27G 
Fig. 
Gh. 
The same, seen from the dorsal side. 
27G 
Fig. 
7. 
Polycope simplex , T. E. Jones and .J. W. Kirkby — Piece of sandstone containing 
275 
numerous specimens 
Fig. 
7a. 
One of the specimens enlarged 
275 
Fig. 
8. 
Grijfithides Eicliwaldi, Gr. Fischer de Waldheim — Specimen seen from above ... 
278 
Fig. 
9. 
Phillipsia seminifera, J. Phillips — Portion of the head and thorax 
27G 
Fig. 
9a. 
Pygidium of a young individual 
27G 
Fig. 
10. 
Eracliymetopus Strzeleclcii, F. McCoy — Head, natural size 
280 
Fig. 
10a. 
The same, enlarged ... 
280 
Fig. 
lOJ. 
Pygidium, natural size 
280 
Fig. 
lOc. 
The same, enlarged ... 
280 
