Mamoncillos (Melicoccus bijugatus) also known as mamón. Mamones are traditionally fruits from the Caribbean, Mexico, South and Central America. They are fruits which can be eaten freshly raw and can also be used to make juices, jellies, and desserts.
Manones and Maranon are available in the U.S, though they are seasonal fruits. If you are looking out to buy any of these fruits in the U.S, you can check out Farmtropical.com. They are a website that sells almost any fruit you can think about. Just order and your fruits will be delivered to your doorstep.