Salacia is the Roman goddess of saltwater; she is the Greek equivalent of Amphitrite and, as queen of the sea, she is Neptune/Poseidon's consort. 

The god Neptune wanted to marry Salacia, but she was in great awe of her distinguished suitor, and to preserve her Virginity, with grace and celerity she managed to glide out of sight, and hid from him in the Atlantic Ocean. The grieving Neptune sent a dolphin to look for her and persuade the fair Nymph to come back and share his throne. Salacia agreed to marry Neptune and the King of the deep was so overjoyed at these good tiding that the dolphin was awarded a place in the heavens, where he now forms a well known contellation called Delphinus. 

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