Lens eye of <i>Nucella lapillus</i>
<ul><li>la = lacuna.</li></ul>
<p>Richter S. et al.
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Stefan Richter, Rudi Loesel, Günter Purschke, Andreas Schmidt-Rhaesa, Gerhard Scholtz, Thomas Stach, Lars Vogt, Andreas Wanninger, Georg Brenneis, Carmen Döring, Simone Faller, Martin Fritsch, Peter Grobe, Carsten M. Heuer, Sabrina Kaul, Ole S. Møller, Carsten H. G. Müller, Verena Rieger, Birgen H. Rothe, Martin E. J. Stegner &amp; Steffen Harzsch
CC BY 2.0
Richter S. et al. (2010). "Invertebrate neurophylogeny: suggested terms and definitions for a neuroanatomical glossary". <i>Frontiers in Zoology</i> <b>7</b>:29. <a href="//doi.org/10.1186/1742-9994-7-29" class="extiw" title="doi:10.1186/1742-9994-7-29">doi:10.1186/1742-9994-7-29</a>. <a rel="nofollow" class="external text" href="http://www.frontiersinzoology.com/content/7/1/29/figure/F6">figure 6F</a>. Modified from Salvini-Plawen L. V. &amp; Mayr E. (1977). "On the evolution of photoreceptors and eyes". In: <i>Evolutionary Biology</i> <b>10</b>. Hecht M. K., Steere W. C., Wallace B. (eds.). New York: Plenum; 207-263. with permission of Springer.