Habitat: Only found growing on artificial substrates. Distribution: Florida, Panama, Guadaloupe, Haiti, Curaçao, St. Thomas. Depth: 0.5 m Characteristics: Small and rounded individuals, with translucent tunic. The mantle is almost free from muscles. There are 30-50 oral tentacles, the dorsal lamina is subdivided in languets, branchial sac with approximately 25 longitudinal vessels in each side and stigmatas are coiled in spiral. As common to the genus, the tube digestive and gonads are only on the right side of the body.