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Canis familiaris - schedel</div>
<bdi><a href="https://en.wikipedia.org/wiki/en:Willem_Vrolik" class="extiw" title="w:en:Willem Vrolik"><span title="Dutch anatomist and writer (1801–1863)">Willem Vrolik</span></a>
</bdi>
W.Th. Vrolik, 17 Januarij 1858.