Chelifer cancroides - A pseudoscorpion named <i><b><a href="//commons.wikimedia.org/wiki/Chelifer_cancroides" title="Chelifer cancroides">Chelifer cancroides</a></b></i>. The specimen is about 2.5 to 3 mm long (without extremities) and lives between the author's books. © Christian Fischer - CC BY-SA 3.0 - Wikimedia Commons