PLATE II. 



Fig. Page. 



1. Sinuites maccallumi, sp. nov. Internal cast. Side view. X 1 1 • Bal- 



clatchie Group, Ardmillan. Mrs. Gray's Coll. 10. 



la. Dorsal view. X 1^- 



2. Ditto. Internal cast. Side view. X 1^. Same horizon, locality and 



collection. 10. 



2 a. Sinus view. X 1^. 



3. Ditto. Internal cast. Side view. x 1^. Same horizon, locality and 



collection. 10. 



4. Ditto. Internal cast. Sinus view. X 1-^. Same horizon, locality and 



collection. 10. 



5. Ditto ?. Internal cast. Side view, x 2^. Same horizon, locality and 



collection. 10. 



(3. Sinuites pseudoco)upressiis, sp. uov. Internal cast. Side view, x 1:^. 



Middle Bala. Long Lane Quarry, Craven Arms. Sedgwick Mus. 11. 



7. Ditto. Internal cast. Side view. X Ij. Same horizon, locality and 



collection. 11. 



8. Ditto. Internal cast. Sinus view. X 1^- Same horizon, Horderley. 



Sedgwick Mus. 11. 



9. Sinuites pu.sgill ens is, s\). nov. Internal cast. Side view. X l^- Corona 



Beds, Pnsgill. British Mus. (G. 22064). 12. 



9^. Dorsal view. X l^. 9b. front view. X H- 



10. Ditto. Internal cast. Side view. X 1^. Same horizon and locality. 



Sedgwick Mus. 12. 



11. Ditto. Internal cast. Sinus view. X 1^. Same horizon, locality and 



collection. 12. 



12. Ditto. Internal cast. Front view. X 1:^. Same horizon, locality and 



collection. 12. 



13. Sinuites semirugosus (Salter MS.). Dorsal view. X 1^. Bala Series, 



Tyn y twyl. Mus. Pract. Geol. [28039]. 13. 



14. Ditto. Side view. X 2. Same horizon, locality and collection [28040]. 18. 



15. Ditto. Sinus view. X 2. Bala Series, Vyrnwy Dam. Sedgwick Mus. 13. 

 15 a. Portion of ornament. X 10. 



16. Ditto. Internal cast. Three-quarter front view. X 1^. Bala Series, 



Tyn y twyl. Mus. Pract. Geol. [28041]. 18. 



17. Ditto. Restored outline of front view. 



18. Sinuites soudleuensis, sp. nov. Internal cast. Side view, with portion of 



shell showing ornament. Nat. size. Bala Series, Horderley. Mus. 

 Pract. Geol. [28026]. J 3. 



18a. Front view. Nat. size. 18 6. Sinus view. Nat. size. 



19. Ditto. Internal cast. Side view. X 1:^. Bala Series, Soudley. 



Sedgwick Mus. 13. 



19 a. Dorsal view. X l^^. 



