What is a banga Mary fish?

There is no fish known as a "banga Mary fish." It's likely a misunderstanding or a mispronunciation.

It's possible you're thinking of:

* Banga soup: This is a popular Nigerian soup made with palm oil, fish, and other ingredients. It's not a specific type of fish, but a dish that often uses fish.

* Mary fish: This might be a local name for a fish in a specific region. If you can provide more context, such as where you heard the term, we might be able to identify the fish.

To help me identify what you're looking for, could you tell me:

* Where did you hear the term "banga Mary fish"?

* What kind of fish were you expecting it to be?

* What other details do you know about it?

With more information, I might be able to help you find the fish you're looking for.