The interest attaching to a precise knowledge of the structure and development of the scales of fishes is twofold. Not only may it throw light upon the affinities between groups of existing fishes and their evolution, but it helps to elucidate the problems involved in regard to tooth-genesis; for there can be but little doubt that scales and teeth are homologous structures.

1

Since writing the above Mr. Stuart Thomson’s more detailed paper has been published (‘Journ. Marine Biolog. Assoc.,’ vol. vii, 1904). I see no reason, however, for modifying the opinion which I have already expressed.— H.W.M.T.

Copyright © 1905 by the Company of Biologists Ltd.
1905
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