ALLIGATOR, N. The crocodile of America, superior in every detail to the crocodile of the effete monarchies of the Old World. Herodotus says the Indus is, with one exception, the only river that produces crocodiles, but they appear to have gone West and grown up with the other rivers. From the notches on his back the alligator is called a sawrian.
The Collected Works of Ambrose Bierce (p. 22), The Neale Publishing Co. 1911