| Biology: |
Colonial (Ref. 19). Known from mangroves (Ref. 86642), tidal inlets, sheltered areas of bays, exposed areas of bays, including any ledges at their entrance, sounds, caves, still-water areas of anchialine ponds, shallow reefs, shallow coastal benthic habitats (< 25 m), deeper coastal substrates (25- 100m) of the offshore fore-reef slope and surface or near surface water layers, including porpitids and the halopelagic Sargassum sp. fauna (Ref. 86643). Also found in Carrie Bow Cay, Belize, in patch reefs, mangrove islands, Thalassia sp. beds, sand trough, outer ridge and fore-reef slopes on Thalassia sp. beds, mangrove roots, floating Sargassum sp. and substrates composed of dead corals and gorgonians at depths of 0.2 to 31 m ) (Ref. 87156). It is found mainly on hard substrates, wood, ropes, dead gorgonians and smaller colonies are epizoic to Symplectoscyphus spp., Bougainvillia muscus, Sertularella polyzonias, Hybocodon chilensis (Ref. 87801). As with other hydroids, this species exhibits a pelagic medusoid stage (Ref. 87156). Benthic suspension feeder. Feeds mainly on fecal pellets, organic matter, microalgae, and some zooplankton (Ref. 116236). |