. The fundus oculi of birds, especially as viewed by the ophthalmoscope; a study in the comparative anatomy and physiology . Fig. 144 Fundus Oculi of the Virginian Opossum(After Lindsay Johnson.) [116] THE RELATIONS OF REPTILIAN TO AVIAN FUNDI 117 ReptiliaTurkish Gecko. Hcmidacfylus image; left eye. The fundus appear-ances (Plate LIX) of this nocturnal lizardremind one of the Kiwi (Plate IV). Theorange-red background is uniformly dottedwith dark spots, while the circular papilla iscompletely obscured by a chocolate-brown. Fig. 145Pecten of a Turkish Gecko (Hermidactylus turcicus
. The fundus oculi of birds, especially as viewed by the ophthalmoscope; a study in the comparative anatomy and physiology . Fig. 144 Fundus Oculi of the Virginian Opossum(After Lindsay Johnson.) [116] THE RELATIONS OF REPTILIAN TO AVIAN FUNDI 117 ReptiliaTurkish Gecko. Hcmidacfylus image; left eye. The fundus appear-ances (Plate LIX) of this nocturnal lizardremind one of the Kiwi (Plate IV). Theorange-red background is uniformly dottedwith dark spots, while the circular papilla iscompletely obscured by a chocolate-brown. Fig. 145Pecten of a Turkish Gecko (Hermidactylus turcicus). pecten, whose pointed free end projects amedium distance into the vitreous. Thereare no signs of retinal or choroidal defined, white lines (opaque nervefibres) radiate from the disc margins, givingthe effect of a halo about the central zone ofthe picture. A lateral view of the Gecko pecten is seenin Fig. 145; it is suggestive of a similar view ofthe Apteryx pecten (Fig. 27). Horned Toad. Phrynosoma LX. Left eye. Erect image. Thecolor of the fundus oculi is a dark slate, irregu-larly strewn with minute, whitish dots ofvarious sizes. There is an ill-defined macularregion. The pear-shaped, grayish papilla has awhite margin, from which short fibres of un-equal length radiate towards the single central (?) artery seems to originatefrom the nervehead and with its six branches— two on one side of the disc, four on theother — is supplied mostly to the lower halfof the eyeground. Above, a
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Keywords: ., boo, bookcentury1900, bookdecade1910, booksubjecteye, bookyear1917
