Topography of Photoreceptors and Retinal Ganglion Cells in the Spotted Hyena (Crocuta crocuta)

  title={Topography of Photoreceptors and Retinal Ganglion Cells in the Spotted Hyena (Crocuta crocuta)},
  author={Jack B. Calderone and Benjamin E. Reese and Gerald H. Jacobs},
  journal={Brain, Behavior and Evolution},
  pages={182 - 192}
The spatial distributions of photoreceptors and retinal ganglion cells were examined in the spotted hyena (Crocuta crocuta). Two populations of cones were identified by immunocytochemical labeling. The hyena retina contains approximately 2.3 million middle- to long-wavelength sensitive (M/L) cones that reach peak densities of about 7,500/mm2 in the vicinity of the optic nerve head. A sparser population of short-wavelength sensitive (S) cones, totaling about 0.3 million, was also detected. There… 

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