*<i>Clypeaster rosaceus</i> (Linnaeus, 1758), shell without spines from above
<ul><li><i>Clypeaster rosaceus</i> (Linnaeus, 1758), internal organs from above</li></ul>
<bdi><a href="https://en.wikipedia.org/wiki/en:Ernst_Haeckel" class="extiw" title="w:en:Ernst Haeckel"><span title="German biologist, naturalist, philosopher, physician, and artist (1834-1919)">Ernst Haeckel</span></a>
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			<div class="thumb" style="width: 150px;"><div style="margin:15px auto;"><a href="//commons.wikimedia.org/wiki/File:Haeckel_Echinidea.jpg" class="image"><img alt="Haeckel Echinidea.jpg" src="https://upload.wikimedia.org/wikipedia/commons/thumb/5/50/Haeckel_Echinidea.jpg/86px-Haeckel_Echinidea.jpg" decoding="async" width="86" height="120" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/5/50/Haeckel_Echinidea.jpg/129px-Haeckel_Echinidea.jpg 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/5/50/Haeckel_Echinidea.jpg/172px-Haeckel_Echinidea.jpg 2x" data-file-width="2323" data-file-height="3248"></a></div></div>
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</ul><i>Kunstformen der Natur</i> (1904), plate 30: Echinidea (see <a rel="nofollow" class="external text" href="http://caliban.mpiz-koeln.mpg.de/haeckel/kunstformen/high/Tafel_030_300.html">here</a>, <a rel="nofollow" class="external text" href="http://caliban.mpiz-koeln.mpg.de/haeckel/kunstformen/high/Tafel_030_schema_300.html">here</a>, <a rel="nofollow" class="external text" href="http://caliban.mpiz-koeln.mpg.de/haeckel/kunstformen/high/Tafel_030_text_1_200.html">here</a> and <a rel="nofollow" class="external text" href="http://caliban.mpiz-koeln.mpg.de/haeckel/kunstformen/high/Tafel_030_text_2_200.html">here</a>)