Originally classified as Campanulina (Opercularella) lacerata [details]
Leloup, 1933 classified this species as Grammaria (Filelllum) serpens [details]
Leloup, 1933 classifies this species as Hydractinia (Podocoryne) carnea. [details]
Leloup,1933 proposed this to be the pelagic form ofLaomedea gracilis (Sars). [details]
Colonies found on shells [details]
tufts of species found on seaweed [details]
Species found in tufts on Mytilus [details]
Temperature 16°C, 11.5 PSU (brackish). [details]
Found with Coppinia on the stems of Tubularia indivisa Linné, Abietinaria abietina (Linné), Sertularia ... [details]
found on shells and shell fragments; on polychaete species of Aphrodita (Leloup, 1934). [details]
Species spelt Halecium beani [details]
Polyplumularia frutescens [details]
Leloup, 1933 uses the spelling Thujaria thuja [details]