What was the traditional prayer that St. Marcellin said in the snow storm during a blizzard?

While lost in a blizzard with his brother and near death, he recited the Memorare, pleading for help from the Blessed Virgin Mary.

Remember, O most gracious Virgin Mary, that never was it known that anyone who fled to thy protection, implored thy help, or sought thine intercession was left unaided.
Inspired by this confidence, I fly unto thee, O Virgin of virgins, my mother; to thee do I come, before thee I stand, sinful and sorrowful. O Mother of the Word Incarnate, despise not my petitions, but in thy mercy hear and answer me.
Amen.

At the moment the prayer was concluded, a light shown in the distance and they were led to the cabin of a logger who took them in for the night and they were saved.