PLATE XXXIII. 



Opalinum-zone (Moorei-beds). 



Figs. 1, 2. — GrEAMMOCERAS DiSTANS, 8. Buchnan. 



Fig. 1. — Side view of a specimen without test. Haresfield Hill. My Col- 

 lection. (Page 196.) 



Fig. 2. — Front view of the same. 



Figs. 3, 4. — G-RAMMOCERAs cosTULATUM (Zieten). 



Fig. 3. — Side view of an example with test partly preserved. Frocester Hill 

 (Coaley Peak). My Collection. (Page 197.) 



Fig. 4. — Front view of the same shell. 



Figs. 5 — 10. — Grammoceras leurum, 8. Buckman. 



Fig. 5. — Side view. Only the inner layer of test is preserved. Coaley Peak. 

 My Collection. (Page 195.) 



Fig. 6. — Front view. 



Fig. 7. — Suture-line taken from the same specimen. 



Fig. 8. — Side view of a more adult, and not quite so smooth an example. 

 Coaley Wood. My Collection. 



Fig. 9. — Front view of the same specimen. 



Fig. 10. — Suture-line of the same. 



Jurense-zmie (Dispansum-beds) . 



Figs. 11, 12. — Grammoueras doerntense {Denckmann), variety. 



Fig. 11. — Side view of a very nicely preserved variety. Coaley Wood. My 

 Collection. (Page 182.) 



Fig. 12. — Front view of the same showing the small carina. 



Murchisofidd-zone. 



Figs. 13 — 16. — Grammoceras nannodes, 8. Buckman. 



Fig. 13. — Side view showing the trenchant hollow carina. Stoford, Somerset. 

 My Collection. (Page 213.) 



Fig. 14. — Front view of the same. 



Fig. 15. — Side view of another example. From the "Paving-bed," Bradford 

 Abbas, Dorset. Collected by my father. 



Fig. 16. — Back view of the same specimen. 



Jurense-zone (Dispansum-beds) . 



Figs. 17, 18. — Grammoceras fallaciosum (Bayle). 



Fig. 17. — Side view of a half-grown example. Coaley Wood. My Collection. 

 (Page 204.) 



Fig. 18. — Front view of the same specimen showing the ventral area with the 

 hollow carina present — and absent. The aperture has not been drawn quite long 

 enough ; and therefore it appears too oval, and not sufficiently compressed. » 



