. The fundus oculi of birds, especially as viewed by the ophthalmoscope; a study in the comparative anatomy and physiology . Gruiformes Plate XIX Carl a nut cristata. Ardeiformes Plate XX Nycticorax nycticorax CARINATjE Ardeiformes European Bittern. Botaurus stellaris. Plate XXI. The eyeground, mostly mouse-colored shading to yellow, issprinkled with small, dull-white dots. Almost immediately abovethe upper end of the optic nerve entrance and towards the nasalside of the disc is the macular area. The fundal dots at this pointare much duller in tone and incline towards a dull buff color. Thereg
. The fundus oculi of birds, especially as viewed by the ophthalmoscope; a study in the comparative anatomy and physiology . Gruiformes Plate XIX Carl a nut cristata. Ardeiformes Plate XX Nycticorax nycticorax CARINATjE Ardeiformes European Bittern. Botaurus stellaris. Plate XXI. The eyeground, mostly mouse-colored shading to yellow, issprinkled with small, dull-white dots. Almost immediately abovethe upper end of the optic nerve entrance and towards the nasalside of the disc is the macular area. The fundal dots at this pointare much duller in tone and incline towards a dull buff color. Theregion of the macula, enclosed by two circles, one within the other,is also characterized by the presence of very short, bright, bluish-green lines radiating from the centre of the fovea. The optic disc is ovoid, blunt at its upper extremity, and appearsas if its longer margins describe a series of small curves correspond-ing to the folds of the pecten. The disc on either side of the root ofthe pecten is dull-brown; near by are small, orange-red choroidalcapillaries. The papillary margins are quite white and, in contrastwith the shadow cast upon the neighboring f
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Keywords: ., boo, bookcentury1900, bookdecade1910, booksubjecteye, bookyear1917
