Translation of "Fendant" in English

Quand deux affreux serpents, sortis de Ténédos, / ( j'en tremble encor d'horreur ! ) s'allongent sur les flots ; / par un calme profond, fendant l'onde écumante.

When lo! – the tale I shudder to pursue – / from Tenedos in silence, side by side, / two monstrous serpents, horrible to view, / with coils enormous leaning on the tide, / shoreward, with even stretch, the tranquil sea divide.