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1. Modified from Schütt, Ornithoceras.
2. Diagram of transverse fission of a Dinoflagellate. 
3. After Schutt, Exuviaeella.
4. After Stein, Prorocentrum.
5, 6. Ceratium, single and series.
7. Pouchetia fusus (Schutt).
8. Citharistes.
9. After Butschli, Polykrikos.

From Delage and Hérouard’s Traité de zoologie concrete, by permission of Schleicher Frères.
Source Encyclopædia Britannica, 1911
Author Encyclopædia Britannica, Volume 8, Slice 5., available freely at Project Gutenberg


Public domain This image comes from the 12th edition of the Encyclopædia Britannica or earlier. The copyrights for that book have expired in the United States because the book was first published in the US with the publication occurring before January 1, 1924. As such, this image is in the public domain in the United States.
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current20:07, 3 February 2011Thumbnail for version as of 20:07, 3 February 2011461 × 878 (69 KB)Keith Edkins (talk | contribs){{Information |Description={{en|<table><tr><td>1. Modified from Schütt, ''Ornithoceras''.<br /> 2. Diagram of transverse fission of a Dinoflagellate. <br /> 3. After Schutt, ''Exuviaeella''.<br /> 4. After Stein, ''Prorocentrum''.</td> <td>5, 6. ''
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