Pteria colymbus, the Atlantic winged oyster, is a species of bivalve mollusc in the family Pteriidae.

The range extends from North Carolina and Florida, southwards through the Caribbean Sea and the Gulf of Mexico to Venezuela and northern Brazil.

[5] The Atlantic winged oyster is often found attached to the stems of gorgonian corals by strong byssus threads.

In El Niño years, there is increased rainfall in the Caribbean Sea which reduces the salinity, more sediment is stirred up from the substrate and there is greater run-off of nutrients from the land.

It was found that at some times of year the molluscs were stressed, perhaps by a lack of phytoplankton availability, and growth rates were too low for commercial exploitation to be worthwhile.