A Fluorescence Microscopic Study of the Retina of the River Lamprey (Lampetra fluviatilis) and the Atlantic Hagfish, (Myxine glutinosa)

During the last few years many facts have been revealed about the neural structure in the retina of several vertebrate groups, particularly with regard to the monoamine containing neurons. A number of investigations have been made on mammals, birds and teleost fishes by the Falck-Hillarp method for the cellular demonstration of such amines. The present study has paid attention to two cyclostomes, the river lamprey, Lampetra fluviatilis, and the atlantic hagfish, Myxine glutinosa.