Tags: Crustacean.
The Puerto Rican sand crab Emerita portoricensis is a species of sand crab belonging to the genus Emerita which is native to the main island of Puerto Rico and its archipelago. The most detailed study conducted on the species was conducted by Sastre between 1988 and 1992. This investigation determined that the species has diotic traits and that there are size and survival differences between sexes. Both sexes reach sexual maturity three months after birth.