Melampus coffea, commonly known as the coffee bean snail, is a species of small air-breathing salt marsh snail, a pulmonate gastropod mollusk in the family Ellobiidae.

[1] The coffee bean snail is found on both coasts of Florida and throughout the Caribbean.

Upon hatching, the veligers will spend between 4–6 weeks in the plankton, and then return to the mangroves on a high tide, and metamorphose into juvenile snails.

This species is a detritivore and herbivore, foraging upon fresh and decaying mangrove leaf litter.

The coffee bean snail engages in vertical migration leading up to the time of high tide, in order to escape inundation and the increased risk of predation by various fish species.