From editor or global species database
Diagnosis Hydroid forming large, branching colony, with chitinous internal anastomosing skeleton formed by coalescence and modification of adjacent hydrocauline tubes; coenosarc covering entire colony and penetrating skeletal interstices; hydranths over whole colony surface, uniform in structure, cylindrical, with a single whorl of capitate tentacles around mouth and numerous similar tentacles scattered over body; gonophores, where known, cryptomedusoid or eumedusoid, arising directly from coenosarc. [details]
From editor or global species database