(CNN) He spared her life and named her Eve. Now instead of a lobster pot she's going to live in an aquarium.

The owner of a fish market in suburban Washington was sifting through his daily seafood delivery from Maine in late December when he came across a curious find: a lobster with a speckled, orange-and-black shell.

It turned out to be a rare calico lobster. The odds of catching one are about one in 30 million

The owner of the Ocean City Seafood market in Silver Spring, Maryland, who wants to be identified only as Nicholas, didn't want to send the crustacean to a restaurant to become someone's dinner. So he set her aside.

"He didn't know why she was special," said Rita Montoya, a spokeswoman for the market. "He just formed a bond with her."

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