They really didn't know what to do, until along came a German scientist who realized that they were using two words for forelimb and hind limb, whereas genetics does not differentiate and neither does German.
Realment no sabien què fer, fins que va arribar-hi un científic alemany que es va adonar que utilitzaven dues paraules per a extremitats anteriors i extremitats posteriors, mentre que la genètica no les diferenciava ni tampoc l'alemany.