. The fundus oculi of birds, especially as viewed by the ophthalmoscope; a study in the comparative anatomy and physiology . Serpentariiformes Plate XXXI Gypogeranus vol Serpentarius serpentarius. Accipitriformes Plate XXXII Gypaetus barbatus CARINATuEAccipitriformes Bald Eagle. Haliaetus leucocephalus. Plate XXXIII. The fundus is mostly a dark reddish-brown, the lower half chang-ing to a dull orange-red. The lower eyeground is covered withchoroidal vessels, and is dotted with brown pigment grains, givingit a rough, granular appearance. A gray sheen pervades the upperpart of the fundus. On the
. The fundus oculi of birds, especially as viewed by the ophthalmoscope; a study in the comparative anatomy and physiology . Serpentariiformes Plate XXXI Gypogeranus vol Serpentarius serpentarius. Accipitriformes Plate XXXII Gypaetus barbatus CARINATuEAccipitriformes Bald Eagle. Haliaetus leucocephalus. Plate XXXIII. The fundus is mostly a dark reddish-brown, the lower half chang-ing to a dull orange-red. The lower eyeground is covered withchoroidal vessels, and is dotted with brown pigment grains, givingit a rough, granular appearance. A gray sheen pervades the upperpart of the fundus. On the temporal side and some distance fromthe upper end of the optic nerve is a brilliant, white, round dot sur-rounded by a small, light-green reflex ring, which is itself enclosed ina brilliant, narrow, green macular region. On the nasal side of thedisc, and on a level with this macula is another area, of a gray color,surrounded by a fan-shaped, luminous reflex. The optic nerve entrance is distinctly white, and along its centreis strewn a large number of minute pigment dots. The outer marginof the disk is bordered with black pigment, as if a shadow were castupon it by the pecten. White-bellie
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Keywords: ., boo, bookcentury1900, bookdecade1910, booksubjecteye, bookyear1917
