. The fundus oculi of birds, especially as viewed by the ophthalmoscope; a study in the comparative anatomy and physiology . Psittaciformes Plate XLI Cacatua galerita. Coraciiformes Plate XLII Dacelo gig as CARINATjE Coraciiformes Black Hornbill. Spagolobus adratus. Plate XLIII. The principal color of the eyeground is dull gray, interspersed forsome distance about the optic nerve entrance with a mass of fineopaque fibres that extend about a disc-length over the fundus. Be-yond the fibres are several dull-colored choroidal capillaries that crossthe fundal field in a vertical direction. Near the
. The fundus oculi of birds, especially as viewed by the ophthalmoscope; a study in the comparative anatomy and physiology . Psittaciformes Plate XLI Cacatua galerita. Coraciiformes Plate XLII Dacelo gig as CARINATjE Coraciiformes Black Hornbill. Spagolobus adratus. Plate XLIII. The principal color of the eyeground is dull gray, interspersed forsome distance about the optic nerve entrance with a mass of fineopaque fibres that extend about a disc-length over the fundus. Be-yond the fibres are several dull-colored choroidal capillaries that crossthe fundal field in a vertical direction. Near the macular region thefundus is illuminated by a brilliant gray iridescence. The optic disc is a long, white oval, that extends downward anda little inward towards the inner or beak side of the head. Thepecten is very large, the lower segment being carried far forwardbehind the iris; it presents serrated margins. The macular region is quite circular and is red-brown in inner circle is dead white, while the foveola is represented by adark-red central spot. There are two bright rings around themacula of an iridescent, blue-green color, the fundus between th
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Keywords: ., boo, bookcentury1900, bookdecade1910, booksubjecteye, bookyear1917
