994 DR F. R. C. REED ON THE 



Fig. 28. Ditto. Complete shell, brachial side. Nat. size. Same horizon and locality. G. (Figured, 

 Davidson, SuppL, pi. xiv, fig. 18, as Orthis turgida.) 



Fig. 28a. Ditto. Portion of surface of same specimen. x 2\. 



Fig. 29. Hemipronites Thomsoni, var. inconstans. Complete shell (brachial side), surface abraded. 

 xl|, Stinchar Limestone Group, Craighead. G. 



Fig. 29a. Ditto. Outline anterior view of same specimen. xl^. 



Fig. 30. Ditto. Pedicle-valve. x 2. Same horizon and locality. G. 



Fig. 31. Ditto. Side-view of complete shell. x 2. Same horizon and locality. G. 



Fig. 32. Scenidium Greenoughi, sp. nov. Pedicle-valve. x 2. Whitehouse Group, Shalloch Mill. G. 



Fig. 33. Ditto. Brachial valve. x 2. Same horizon and locality. G. 



Fig. 34. Ditto. Side-view of pedicle-valve. x 2. Same horizon and locality. G. 



Plate XXII. 



Fig. 1. Scenidium Lewisi, Dav., var. nov. asteroidea. Impression of exterior of brachial valve. x 3. 

 Starfish Bed, Drummuck Group Thraive Glen. G. 



Fig. 2. Ditto. Internal cast of pedicle-valve. x 3. Same horizon and locality. G. 

 Fig. 3. Ditto. Internal cast of complete shell, brachial side. x 3. Same horizon and locality. G. 

 Fig. 4. Scenidium Lewisi, Dav., var. nov. craigensis. Complete shell, brachial side. x 2. Stinchar 

 Limestone Group, Craighead. G. 



Fig. 5. Ditto, ditto. x 2. Same horizon and locality. G. 



Fig. 6. Ditto. Side-view of complete shell, x 1\. Same horizon and locality. G. 

 Fig. 7. Ditto. Pedicle-valve. x 1\. Same horizon and locality. G. 

 Fig. 8. Ditto. Internal cast of brachial valve. x 4. Same horizon and locality. G. 

 Fig. 9. Ditto. Internal cast of complete shell, pedicle side. x 3. Balclatchie Group, Balclatchie. G. 

 Fig. 10. Porambonites acutiplicata, sp. nov. Complete shell, pedicle side. G. x 1£. Stinchar Lime- 

 stone Group, Craighead. G. 



Fig. 10a. Ditto. Same specimen. Brachial side, x 1L 

 Fig. 10b. Ditto. Same specimen, side-view. x 1J. 

 Fig. 10c. Ditto. Same specimen, anterior view. x 1L 



Fig. 11. Ditto. Portion of surface of shell. x 6. Same horizon and locality. G. 

 Fig. 12. Camarella baklatchiensis (Dav.). Complete shell, pedicle- valve. xl|. Stinchar Limestone 

 Group, Craighead. G. (Figured, Davidson, SuppL, pi. x, fig. 15.) 

 Fig. 12a. Ditto. Same specimen, brachial side. xl|. 

 Same specimen, side-view. x 1£. 

 Complete shell, pedicle side. xl|. Same horizon and locality. G. 

 Same specimen, brachial side. x 1£. 

 Same specimen, side-view. x 1J. 

 Anterior view of complete shell. xl|. Same horizon and locality. G. 

 Complete shell (swollen variety) brachial side. xl|. Same horizon and locality. G. 

 Fig. 15a. Ditto. Anterior view of same specimen. x 1^. 



Fig. 16. Camarella balclatchiensis (Dav.), var. Pedicle-valve. x 1^. Balclatchie Group (congloin.), 

 Balclatchie. C. (Figured, Davidson, Suppl. pi. x, fig. 16.) 

 fl. 17 Q.7Z-7£f Fig. 17. Ditto, ditto. xl|. Same horizon and locality. G. 

 $ Si. £.7.2 7<t Fig. 18. Ditto. Brachial valve. x 2. Same horizon and locality. G. 



Fig. 19. Gamarellal Conybearei, sp. nov. Pedicle-valve. x 4. Balclatchie Group (conglom.), 

 Balclatchie. G. 



Fig. 20. Ditto. Brachial valve. x 4. Same horizon and locality. G. 



Fig. 21. Ditto. Pedicle-valve. x 4. Same horizon and locality. G. 



Fig. 22. Ditto. Brachial valve. x 4. Same horizon and locality. G. 



Fig. 23. Ditto. Pedicle-valve, x 2|. Stinchar Limestone Group, Craighead. G. 



Fig. 24. Ditto. Brachial valve. x 2£. Same horizon and locality. G. 



>• 



Fig. 12fc. Ditto. 



a,M, <3,7i"?£i 



Fig. 13. Ditto. 



,, 



Fig. 13a. Ditto. 



,, 



Fig. YSb. Ditto. 



fi-H. 6 72.771 



Fig. 14. Ditto. 





Fig. 15. Ditto. 



