Amphithoe (mythology)

In Greek mythology, Amphithoë (Ancient Greek: Ἀμφιθόη means 'she who moves swiftly around') was one of the 50 Nereids, sea-nymph daughters of the 'Old Man of the Sea' Nereus and the Oceanid Doris. She was probably the same as Amphitrite. 
Mythology.
Amphithoe and her other sisters appeared to Thetis when she cries out in sympathy for the grief of Achilles for his slain friend Patroclus.