Abstract
The retinal ganglion cell layer of five species of reef teleosts was studied from Nissl-stained whole-mounts and the distribution of neural elements determined quantitatively. Iso-density contour maps of neurons in the ganglion cell layer revealed a temporal area centralis (ranging from 3.5 to 8.3 x 104 cells/mm2) which often extended into a horizontal streak (ranging from 1.4 to 5.0 x 104 cells/mm2) across the retinal meridian. Species possessing a marked horizontal streak were found to inhabit open water and perceive their environment with an uninterrupted view of sand-water horizon. The behavioural significance of these horizontal areas of acute vision is also discussed.
Original language | English |
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Pages (from-to) | 283 |
Number of pages | 295 |
Journal | Brain, Behaviour and Evolution |
Volume | 31 |
DOIs | |
Publication status | Published - 6 Feb 1988 |