5 - Funnel Web Spider
Almost everyone is scared of spiders (even the 'tough guys' who try to convince people they find them 'cute') and one of the least pleasant in the Land Dahn Unda, not to mention most famous, is this fellow. There are several species, all of which are venomous and have large fangs capable of biting through a fingernail or shoe. They do at least do you the courtesy of adopting a 'warning posture' before striking, which is handy... assuming you even see them. Fortunately there are anti-venoms available; otherwise this scary scurrier would be higher on the list!