Pertaining to or of the nature of a limit or boundary.
The Century Dictionary (Public Domain)
Use "limital" in a sentence
"Eighty-five species of the birds now listed for North America are of this extra-limital class."
"Central America, and the West Indies were about twenty-five in number, as given below, those marked with an asterisk being also extra-limital: * Athapascan (Chihuahua etc.); * Cariban (Honduras and the islands); Chiapanecan (Oaxaca); Huavean (Oaxaca); Lencan"
"Without a decent photograph some records of extra-limital species would never get accepted anyway, and - let's be honest - who doesn't like looking at a great photo of a bird they may never see themselves anyway?"