eye-structure

We have seen, however, that there are many instances of wonderfully close similarity which are not due to genetic affinity; the most notable instance, perhaps, being that brought forward by Mr. Murphy, namely, the appearance of the same eye-structure in the vertebrate and molluscous sub-kingdoms.

On the Genesis of Species St. George Mivart

All were blind, with at most some faint vestigia of eye-structure, wholly degenerated and useless.

Darkness and Dawn George Allan England 1906

Let us see what line we should have to take, on this hypothesis, to account for the resemblance of eye-structure in two series that are independent of each other from the phylogenetic point of view.

Evolution créatrice. English Henri Bergson 1900