Western Atlantic: southern Florida, USA and Bahamas to northern South America; range reported to extend to Brazil.
Eastern Atlantic: not until 1979 was this species found again at the coast of Victoria in Cameroon and at Lomé in Togo.
Reported from Senegal and São Tomé Island.
Occurs in mangroves, pilings and rocky shores, often in silty water.
Feeds on crustaceans, hydroids, bryozoans and pelecypods.
Oviparous, eggs are demersal and adhesive .