. The fundus oculi of birds, especially as viewed by the ophthalmoscope; a study in the comparative anatomy and physiology . Psittaciformes Plate XXXIX (li rysot is- a mazona. Psittaciformes Plate XL Stringops h ab ropt ilus CARINATiE Psittaciformes Great Sulphur-crested Cockatoo. Cacatua galerita. Plate XLI The background is of a fairly uniform, light, grayish-blue color,sprinkled with minute white dots interspersed with many less numer-ous but somewhat larger dark gray deposits. The macula, at theupper-inner quadrant, is an irregularly round, light brownish areawhose diameter is half the dis


. The fundus oculi of birds, especially as viewed by the ophthalmoscope; a study in the comparative anatomy and physiology . Psittaciformes Plate XXXIX (li rysot is- a mazona. Psittaciformes Plate XL Stringops h ab ropt ilus CARINATiE Psittaciformes Great Sulphur-crested Cockatoo. Cacatua galerita. Plate XLI The background is of a fairly uniform, light, grayish-blue color,sprinkled with minute white dots interspersed with many less numer-ous but somewhat larger dark gray deposits. The macula, at theupper-inner quadrant, is an irregularly round, light brownish areawhose diameter is half the disc length; and whose periphery fadesinto the surrounding gray of the fundus. The upper sixth of thelong, pointed papilla is distinctly visible where it is not covered bythe indented pecten, whose twelve double folds have a corkscrewtermination above. Portions of the disc borders can be seen fromabove through the plications, except at its posterior terminal, wherethe dark-brown mass entirely covers it. Faint, whitish lines ofopaque nerve fibres extend from the margins of the upper half ofthe disc a short distance across the centre of the eyeground. CoraciiformesLaughing


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Keywords: ., boo, bookcentury1900, bookdecade1910, booksubjecteye, bookyear1917