. The fundus oculi of birds, especially as viewed by the ophthalmoscope; a study in the comparative anatomy and physiology . periorand a triangular inferior extremity. Theconical crest of the upper free border iswide for three-fourths of its entire terminates in a thin, corkscrew processbefore it reaches the tip of the upper con-volution, which almost touches the retinalband, with which the (projected) majoraxis of the nerve-head describes a rightangle. The convolutions decrease pari passuin size from behind forward, all the coilsinclining towards the lower end of the disc. Pho enico
. The fundus oculi of birds, especially as viewed by the ophthalmoscope; a study in the comparative anatomy and physiology . periorand a triangular inferior extremity. Theconical crest of the upper free border iswide for three-fourths of its entire terminates in a thin, corkscrew processbefore it reaches the tip of the upper con-volution, which almost touches the retinalband, with which the (projected) majoraxis of the nerve-head describes a rightangle. The convolutions decrease pari passuin size from behind forward, all the coilsinclining towards the lower end of the disc. Pho enicopterif ormes Common Old-world Flamingo. Phoe-nicopterus roseus. (Figs. 94 and 115; macro-scopic view.) This ocular background showsa small but compact penten, whose 18convolutions are (apparently) drawn towardsthe center of the organ above by a deep,cigar-shaped crest, so that the marsupiumresembles, when viewed laterally, a truncatedcone. Stretching obliquely across the fundus is alight-colored, retinal band of medium width,which ends abruptly just before it reaches THE FUNDUS APPEARANCES IN VARIOUS ORDERS OF BIRDS 87. Fig. 130. Brandt Cormorant (Phalacrocorax penicillatus) X9.
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Keywords: ., boo, bookcentury1900, bookdecade1910, booksubjecteye, bookyear1917
