This is a custom Conjure of Poseidon's dolphin, not his, but one he will custom choose himself for you.
The background:
“The Delphines (Dolphins) both rejoice in the echoing shores and dwell in the deep seas, and there is no sea without Delphines (Dophins); for Poseidon loves them exceedingly, inasmuch as when he was seeking Amphitrite the dark-eyed daughter of Nereus who fled from his embraces, Delphines (the Dolphins) marked her hiding in the halls of Okeanos and told Poseidon; and the god of the dark hair straightway carried off the maiden and overcame her against her will. Her he made his bride, queen of the sea, and for their tidings he commended his kindly attendants and bestowed on them exceeding honour for their portion.”
You are getting a custom conjure of one of Poseidon's dolphins.
