Habitat: Found both on mangrove roots and dead coral in Bocas del Toro. Also found in artificial substrates. Distribution: Widely distributed in all oceans. Natural History Notes: This is probably an introduced species in Bocas del Toro. The body contains organic extracts possibly to deter predation. Depth: 1.0 m Characteristics: The encrusting colony is very thin, covering large areas of the substrate. The colony is grayish because the zooids have a dark abdomen, visible through the very delicate tunic. Larvae bud precociously and have 2 zooids.