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The visual system of the fat-tailed dunnart (Sminthopsis crassicaudata), a small polyprotodont marsupial, has been examined both anatomically and behaviourally. The ganglion cell layer was examined in cresyl-violet stained wholemounts and found to contain a mean of 81,400 ganglion cells (SD +/- 3,360); the identification of ganglion cells was supported by a(More)
We examined the retina and optic nerve of one of the smallest mammals, the honey possum (Tarsipes rostratus), a marsupial. Ganglion and displaced amacrine cells were distinguished by morphological criteria in retinal wholemounts stained with cresyl violet. There was a mean of 90,000 ganglion cells which were distributed as an area centralis in the(More)
1. In this review we describe some of our recent studies on the developing marsupial visual pathway. The description focuses on retinal ganglion cells, considering the formation of their dendritic trees, the outgrowth of axons and the formation of connections within the brain. 2. Both dendritic trees and outgrowing axons undergo a period of exuberance,(More)
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