168 THE BRACHIOPODA OF THE SCOTTISH NATIONAL ANTARCTIC EXPEDITION. 



Fig. 7. Front view of same example. x 1 J. 



Fig. 8. Shell-mosaic, etc., of another example, x 175. 



Fig. 9. Liothyrina uva (Brod.). Burdwood Bank, south of Falkland Islands; 56 fathoms. Interior 

 views of both valves, showing brachial support and median septum in dorsal and pallial sinuses in ventral 

 valve. x 1J. 



PLATE II. 



Fig. 10. Terebratella sp. Burdwood Bank, south of Falkland Islands; 56 fathoms. Interior views 

 showing terebratelliform stage of loop, etc. x If. (The ascending branches, unfortuimtely, broke away 

 before photograph was taken.) 



Fig. 11. Terebratella dorsata (Gmelin). Burdwood Bank, 56 fathoms. Interior view of fragment of 

 ventral valve showing small size of the foramen, muscular impressions, etc. x 1. 



Fig. 12. Terebratella dorsata (Gmelin). Burdwood Bank, 56 fathoms. Typical example showing shape 

 and surface sculpture. Natural size. 



Fig. 13. Terebratella dorsata (Gmelin). Burdwood Bank, 56 fathoms. Elongate variety showing 

 produced beak, etc. x 1J. 



Fig. 14. Hemithyrix sp. Station 417, off Coats Land, 1410 fathoms. Shell-mosaic, ventral valve. 

 x 166 about. 



Figs. 15-19. Macandrevia diamantina, Dall. Station 417, off Coats Land, 1410 fathoms. 



Fig. 15. Specimens attached to pebbles of granite rocks ; slightly larger than natural size. 



Fig. 16. Interior views of dorsal and ventral valves, showing adult loop, etc. x If. 



Fig. 17. Platidiform stage of loop in example 4 mm. in length, x 12. 



Fig. 18. Pre-adult stage of loop in example 9 mm. in length, x 4J. 



Fig. 19. Shell-mosaic, etc., from middle of ventral valve of an adult individual. x 175. 



(ROY. soc. EDIN. TRANS., VOL. XLVIII., 390.) 



