EXPLANATION OF THE PLATES. 



PLATE I. 



FIG. 



1 . Raia clavata* (half-grown) . Shoulder-girdle and part of vertebral column ; upper 



view .... 



2. Do. do. side view 



3. Do. do. lower view 



4. Do. do. front view 



5. Do. do. part of surface 



6. Acipemer sturio 2 (half-grown). Left Shoulder-plates ; outer side view 



7. Do. do. inner side view . 



8. Do. do. posterior view 



9. Callichthys littoralis* (half-grown). Right shoulder and face 



10. Do. Part of back between the dorsal fins 



11. Do. Shoulder-plates ; outer view 



12. Do. do. inner view 



13. Do. do. lower view 



14. Zeusfaber* (middle size). Left Shoulder-plates; outer side 



SIZE. 



nat. size, 

 do. 

 do. 

 do. 



magnified. 



| nat. size. 



do. 



do. 



2 diam. 

 do. 

 do. 

 do. 

 do. 

 nat. size. 



1 See pp. 68. 3 See pp. 10 14. 3 See pp. 2327. * See pp. 50, 51. 



