WoRMS taxon details
basis of record
Bouillon, J.; Boero, F. (2000). Synopsis of the families and genera of the Hydromedusae of the world, with a list of the worldwide species. <i>Thalassia Salent. 24</i>: 47-296 (look up in IMIS) [details]
Present Inaccurate Introduced: alien Containing type locality
From editor or global species database
Diagnosis Hydroid colony stolonal or erect, arising from creeping hydrorhiza; hydrotheca tubular to campanulate, radially or bilaterally symmetrical, often adnate for some distance basally, seldom pedicellate, margin entire, operculum usually absent, with or without diaphragm, without annular perisarcal thickening; hydranth with or without abcauline diverticulum; nematophores present or absent; cnidome: microbasic mastigophores; gonophores fixed sporosacs; gonothecae aggregated into coppinia or scapus, exceptionally solitary. [details]
From editor or global species database
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