File:Classified Diatoms.png

Summary

Scanning Electron Micrographs of Diatoms. (A) Biddulphia reticulata. The whole shell or frustule of a centric diatom showing valves and girdle bands (size bar = 10 micrometres). (B) Diploneis sp. This picture shows two whole pennate diatom frustules in which raphes or slits, valves, and girdle bands can be seen (size bar = 10 micrometres). (C) Eupodiscus radiatus. View of a single valve of a centric diatom (size bar = 20 micrometres) (D) Melosira varians. The frustule of a centric diatom, showing both valves and some girdle bands (size bar = 10 micrometres).

Copyright status

This image was published in a Public Library of Science journal. Their website states that the content of all PLoS journals is published under the Creative Commons Attribution.

Source

http://commons.wikimedia.org/wiki/Image:Diatoms.png