40 



THE FUNDUS OCULI OF BIRDS 



Fig. 36. 

 Ipecaha Rail (Ar amides ipecaha). 



Fig. 39. 

 Herring Gull (Larus argentatus). 



Fig. 37. 

 Black-footed Penguin (Spheniscus demersus). 



Fig. 40. 

 Great Black-backed Gull (Larus marinus). 



Fig. 38. 

 Puffin (Fratercula arctica). 



Fig. 41. 

 Stone Plover (Oedicnemus scolopax). 



Diagrams of the Pecten as seen by the Ophthalmoscope in Various Species of Birds. 



