This monster is a wingless, legless dragon, with a fair amount of knotting. It is defined in the following arms. Though it has not been explicitly disallowed, given the orm’s similarity to Norse beasts, its current acceptability is questionable.
Orm Skjoldbidig bears: Sable, an orm erect contourny gules, armed, langued and fimbriated Or, debruised by a bezant.