Amphitrite (4 syl.). Wife of Poseidon (3 syl.), queen goddess of the sea. N.B. Neptune had no wife.
Doto, a sea-nymph, mentioned by Virgil.
Galatea, a daughter of Nereus.
Glaucus, a fisherman of Boeotia, afterwards a marine diety.
Ino, who threw herself from a rock into the sea, and was made a sea-goddess. Neptune (2 syl.), king of the ocean.
The Nereids (3 syl.) or Nereides (4 syl.), fifty in number.
Nereus (2 syl.) and his wife Doris. Their palace was at the bottom of the Mediterranean Sea. His hair was sea-weeds.
Oceanos and his wife Tethys. Oceanos was not god of the sea, but of the ocean, supposed to form a boundary round the world.
Oceanides (5 syl.). Daughters of Oceanos.
Palemon, the Greek Portumnus. Portumnus, the protector of harbours. Poseidon (3 syl.), the Greek Neptune. Proteus (2 syl.), who assumed every variety of shape. Sirens (The). Sea nymphs who charmed by song. Tethys, wife of Oceanos, and daughter of Uranus and Terra. Thetis, a daughter of Nereus and mother of Achilles. Triton, son of Poseidon (3 syl.).
The Naiads or Naiades (3 syl.) were river nymphs.
Source: Dictionary of Phrase and Fable, E. Cobham Brewer, 1894