Pencil drawing of a Giant African threadfin (<b>Polydactylus quadrifilis</b>). Open mouth, spread fins. The scalation is partially depicted.
<a href="//commons.wikimedia.org/wiki/User:Tranlamp" title="User:Tranlamp">Tranlamp</a>
CC BY 3.0
<span class="int-own-work" lang="en">Own work</span>