984 



DR F. R. C. REED ON THE 



Plate XI. 



Fig. 1. 



impression) 



Fig. 2. 



Fig. 3. 

 Craighead. 



Fig. 4. 



Fig. 4a. Ditto. 



Fig. 5. Ditto. 



Fig. 6. Ditto. 



Fig. 7. Ditto. 



'o 1 

 locality. 



Fig. 



Orthis (Nicoldla) Actonia', Sow., var. nov. asteroidea. Pedicle-valve (from squeeze of external 



x 2. Starfish Bed, Druminuck Group, Thraive Glen. G. 

 Ditto. Internal cast of same shell. x 2. G. 

 Orthis (Harknessella) vespertilio, Sow. Brachial valve. 

 [13100.] M.PG. 



Ditto. Pedicle- valve. x 1|. Same horizon and locality 

 Cardinal region of same specimen. x 1|. 

 Pedicle-valve. x 1^. Same horizon and locality. G. 

 Brachial valve of complete specimen. x 1£. Same horizon and locality, 

 Left-hand half of pedicle-valve, showing ribbing. x 1|. Same 



x 1|. Stinchar Limestone Group, 

 [13099.] M.P.G. 



G. 



horizon and 



G. 



. Orthis 1 nina, Dav. Pedicle-valve? x 4. Whitehouse Group, Whitehouse Bay. [4180.] M.P.G. 



Fig. 9. Ditto. Pedicle-valve ? x 6. Same horizon and locality. G. (? Figured, Davidson, Suppl., 

 pi. xiii, fig. 11.) 



Fig. 10. Ditto, ditto? x 8. Same horizon and locality. G. 



Fig. 11. Ditto. Brachial valve ? x 6. Same horizon and locality. G. 



Fig. 12. Ditto, ditto? x 8. Same horizon and locality. G. 



Fig. 13. Rafinesquina concentrica (Portl.). Internal cast of pedicle-valve. x 1|. 

 Ardmillan. G. 



Fig. 14. Ditto, ditto. Nat. size. Same horizon and locality. G. 



Fig. 14«. Ditto. Cardinal and muscular area of same specimen. x 2. 



Fig. 15. Ditto. Internal cast of brachial valve. x 1J. Same horizon and locality. 



Fig. 16. Ditto. Impression of exterior of same shell. x \\. G. 



Fig. 16a. Ditto. Portion of surface of same specimen. x 5. 



var. nov. Macallumi. Pedicle-valve. 



Balclatchie Group, 



G. 



Fig. 17. Rafinesquina expansa (Sow.) 

 Group, Doularg. G. 



x 1L Stinchar Limestone 



Fig 



17a. Ditto. 

 Fig. 18. Ditto. 



Portion of worn surface of shell of same specimen. 

 Brachial valve. x \\. Same horizon, Minuntion. 



x6. 



G. 



Fig. 19. 

 Fig. 20. 

 Fig. 21. 



Ditto. 

 Ditto. 



Outline of another specimen. x §. Same horizon and locality. G. 



x 1|. Balclatchie Group 

 Same horizon and locality. (Figured, 



Portion of surface of shell. x 6. Same horizon, Bennane Burn. 

 Rafinesquina (Playfairia) deltoidea (Conr.). Pedicle-valve, 

 (conglom.), Balclatchie. G. 



Fig. 22. Ditto. Brachial valve of complete shell. x 1|. 

 Davidson, Suppl., pi. xv, fig. 17.) G. 



Fig. 23. Ditto. Interior of brachial valve. x 1L Same horizon and locality. (Figured, Davidson, 

 Suppl., pi. xv, fig. 22.) G. 



Fig. 24. Ditto. Internal cast of pedicle-valve. xl|, Same horizon and locality. G. 



25. Ditto, ditto. x 1|. Same horizon and locality. G. 



26. Ditto, ditto. x 2. Same horizon, Ardmillan. G. • 



27. Ditto. Internal cast of brachial valve. x 2. Same horizon. Balclatchie. G. 



28. Ditto. , Impression of exterior of brachial valve, x 2|. Same horizon and locality. 



29. Ditto, ditto (with cardinal area of pedicle-valve). x 2J. Same horizon, Ardmillan. 



30. Ditto. Outline side-view of shell. x 1^. Same horizon, Balclatchie. G. 



Fig. 31. Rafinesquina (Playfairia) deltoidea (Conr.), var. nov. multicorrugata. Impression of exterior 

 of brachial valve. x 2. Balclatchie Group, Ardmillan. G. 



Fig. 31a. Ditto. Portion of surface of same specimen. x 4. 



Fig. 

 Fig. 

 Fig. 

 Fig. 

 Fig. 

 Fig. 



G. 



G. 





Plate XII. 



Fig. 1. Rafinesquina (Playfairia) deltoidea (Conr.), var. nov. 

 brachial valve, x 2. (Exterior of same shell figured PI. XI, fig. 31.) 



multicorrugata. Internal cast of 

 Balclatchie Group, Ardmillan. G. 





