Question: who are the sea nymph?
Answer: Νηρηΐς Nereis) are sea nymphs (female spirits of sea waters), the 50 daughters of Nereus and Doris, sisters to their brother Nerites. They often accompany Poseidon, the god of the sea, and can be friendly and helpful to sailors (such as the Argonauts in their search for the Golden Fleece).