spacer gif spacer gif spacer gif spacer gif spacer gif
QUICK SEARCH:   [advanced]


spacer gif
     Home     Help     Feedback     Subscriptions     Archive     Search     Table of Contents    

This Article
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by LYALL, A. H.
Right arrow Search for Related Content
PubMed
Right arrow Articles by LYALL, A. H.

Quarterly Journal of Microscopical Science, Vol s3-98, 101-110, Copyright © 1957 by Company of Biologists

The Growth of the Trout Reina

A. H. LYALL 1

1 Department of Zoology, Liverpool University

1. The growth of the trout eye is negatively allometric in relation to body-length.

2. The relative thicknesses of the retinal layers, and their cell densities, change as the eye grows.

3. The addition of new cells takes place from a peripheral growth zone.

4. Measurements from a wide size-range of trout retinae show that the dimensions of the cone pattern increase as the retina grows.

5. The relative importance of these two processes changes as the eye grows; in early growth the addition of new cells is the principal factor, but the enlargement of the cone pattern, which occurs at an almost constant rate throughout growth, becomes more significant later.






© The Company of Biologists Ltd 1957