PLATE XV. 



FIG. SIZE. 



1. Vanellus cristatus 1 (one-third of incubating period). Shoulder-girdle and 



Sternum ; lower view . . 7 diam, 



2. Do. lower end of clavicles . . . 20 do. 



3. Do. junction of clavicle with coracoid and acroinion . ' do. 



4. Gattinula chloropus* (half of incubating period). Shoulder-girdle and Sternum ; 



lower view . . 6 do. 



5. Do. junction of clavicle with coracoid and acroraion . 15 do. 



6. Do. lower end of clavicles .... do. 



7. N'isus communis" (half- fledged). Shoulder-girdle and Sternum ; side view . n at. size. 



8. Do. do. Sternum; upper view . . do. 



9. Do. do. Section of sternal keel . . 7 diam. 



1 0. Do. do. do. through coracoid grooves . 2 do. 



1 1 . Do. do. do. prse-coracoid and clavicle . 1 do. 



12. Linota cannabina* (two-fifths of incubating period). Right Shoulder-plates; 



inner view . . .20 do. 



13. Do. (four-fifths of incubating period). Shoulder-girdle and 



Sternum; lower view . . 8 do. 



14. Do. (do.) Right clavicle and cartilage-segments ; inner 



view . . . . 24 do. 



15. Do. (do.) Junction of clavicle with coracoid and sca- 



pula ; outer view . . . do. 



16. Merula vulgarig" (four-fifths of incubating period). Shoulder-girdle and 



Sternum; lower view . . 10 do. 



17. Do. (fledgling). Sternum; side view . . 2 do. 



18. Cbram>mM 6 (newly-fledged). Shoulder- girdle and sternum ; outer view . nat. size. 



19. Do. (do.) Furcula; side view . . . 2 diam. 



20. Do. (do.) Section of sternal keel . . 10 do. 



1 See pp. 155157. 

 4 See pp. 178 181. 



See pp. 161, 162. 

 See pp. 178 181. 



See pp. 166169. 

 See pp. 178 181. 



