The Auk, Vol. XIX. 



Plate XI. 



BILLS OF GEOSPIZA. 



Natural Size. 



Fig. I. Geospiza srandens scntidens, James Island, from Ridgway. 



Fig. 2. G. scandens rothschildi, Bindloe Island. 



Fig. 3. G. fortis fortts, Albemarle Island, from Ridgwaj. 



Fig. 4. G. crassirostyis, from Ridgway after Gould. 



!■"'&• 5- ^- conifosiris conirostris, Hood Island, from Ridgway. 



Fig. 6. G. fidiffinosa parvula, Tagus Cove, Albemarle Island. 



Fig. 7. G. prosthemelas prosthemelaSy Albemarle Island. 



Fig. 8. G. strenua, Albemarle Island, from Rothschild. 



Fig. 9. G. pachyrhyncha^ Tower Island, from Ridgway. 



