Note 1745 — BOOK VIII. THE NATURE OF THE TERRESTRIAL ANIMALS.
John Bostock translation
The cerastes, or horned serpent, is mentioned by Lucan, in his description of serpents, Pharsalia, B. ix. l. 716. One of the Scholiasts on Lucan relates a story that when Helen was eloping with Paris, she trod on the back of a cerastes, and broke it; from which circumstance, the whole race moved with a crooked course.