SUPPLEMENT, PLATE IX. 



Scissi hemera. 



Figs. 1 — 3. — Lioceras undulatum, S. Buckman. 



Fig. 1. — Side view of a specimen almost without test. Burton Bradstock. 

 (Page xxxix.) 



Fig. 2. — Front view. 

 Fig. 3. — Radial curves. 



Figs. 4 — 6. — Lioceras partitum, 8. Buckman. 



Fig. 4. — Side view of a specimen with a portion of test preserved. Burton 

 Bradstock. (Page xxxix.) 



Fig. 5. — Whorl-section. 



Fig. 6. — Suture-lines. 6 a, 6 b. — Radial curves. 



(This is the type. For figures of other examples see PL XIII, fig. 11, PI. XIV, 

 figs. 3, 4, under the name Lioceras opalinum, var. comptum, which should now 

 be altered.) 



Figs. 7 — 9. — Lioceras plicatellum, 8. Buckman. 



Fig. 7. — Side view, mostly without test. (Page xxxviii.) 

 Fig. 8. — Front view. 



Fig. 9. — Suture-lines. 9 a. — Radial curves. 



(This specimen is the type. For a young example see Supplement, PI. VIII, 

 figs. 10—12.) 



Figs. 10 — 12. — Lioceras plectile, 8. Buckman. 



Fig. 10. — Side view, with a considerable portion of test present. Burton 

 Bradstock. (Page xxxix.) 

 Fig. 11. — Front view. 

 Fig. 12. — Parts of suture-lines. 12 a. — Radial curves. 



Figs. 13, 14. — Lioceras sp., cf. undulatdm. 



Fig. 13. — Side view of a small example with most of the test present. 

 Enlarged 1£. Burton Bradstock. (Page xxxix.) 

 Fig. 14. — Front view. 



All the specimens depicted in this Plate were collected by Mr. Darell 

 Stephens, F.G.S. They are now in my cabinet. 



