Asymmetron lucayanum is a species of lancelet that is native to the Atlantic and Indo-west pacific oceans.
It is a benthic species lives in the tropical and subtropical shallow waters of the Atlantic oceans and the Indo-west pacific. They occur at a depth range of 11-915 meters.
Their environment contains sediments that have a high percentage of sand and granule, with low moisture and organic matter content.
The Asymmetron lucayanum is known to have gonads only on the right side of the body.