Final answer:
Poseidon was the Greek god of the sea, earthquakes, and horses, depicted with a trident. Triton, his son with the Nereid Amphitrite, is associated with a conch shell. Proteus had powers of shape-shifting and prophecy, while Naiads and Nereids were freshwater and sea nymphs, respectively.
Step-by-step explanation:
Poseidon is a well-known figure in Greek mythology, known as the god of the sea, earthquakes, and horses. He is one of the twelve Olympian deities and the brother of Zeus and Hades. Poseidon is often depicted with his trident, which is a three-pronged spear, used to cause earthquakes and tame horses.
Triton is a Greek god of the sea and the son of Poseidon and Amphitrite, one of the Nereids. He is commonly associated with a conch shell, which he blows like a trumpet to calm or raise the waves. His heritage means he is linked to both the might of the ocean and the beauty of the sea nymphs.
Proteus, another ancient sea god associated with Poseidon, was known for his ability to change shape (shape-shifting) and foresee the future (prophecy). These powers were particularly useful because they allowed him to escape from those trying to capture him and to provide them with valuable knowledge if they succeeded.
The Naiads were freshwater nymphs, often associated with rivers, streams, brooks, springs, and fountains. In contrast, the Nereids, like Triton's mother Amphitrite, were sea nymphs, and these dwelled in the Mediterranean Sea. Both groups of nymphs were considered to be personifications of aspects of nature, but they were linked to different bodies of water.