A considerable amount of information on the retinal morphology in fishes has been accumulating during the past century. Among the vertebrates, fishes are a highly successful group, both in number of species and in the adaptive radiation of forms. For instance, 415 teleost families are now recognised (GREENWOOD, ROSEN, WEITZMANN and MYERS, 1966), and the 20,000 odd fish species mentioned in text-books have been by far out numbered. The fish retina also shows considerable variations, in conformity with the extreme morphological diversification reached by piscine forms, in colonising all...
A considerable amount of information on the retinal morphology in fishes has been accumulating during the past century. Among the vertebrates, fishes ...