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. Liothyri7ia 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 1^. 



Plate II. 



Fig. 10. Terehratella sp. — Burdwood Bank, south of Falkland Islands; 50 fathoms. Interior views 

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

 before photograph was taken.) 



Fig. 11. Terel/ratella dorsata (Gmelin). — Burdwood Bank, 56 fathoms. Interior view of fragment of 

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



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

 and surface sculpture. Natural size. 



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

 produced beak, etc. x H. 



Fig. 14. Hemithi/ris sp. — Station 417, ofT Coats Land, 1410 fathoms. Shell-mosaic, ventral valve. 

 X 166 about. 



Figs. 15-19. Macandrevia diamantina, Dall. — Station 417, oft' Coats Land, 1410 fathoms. 



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



Fig. 10. 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 4-i. 



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



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



