The polyp of B. flavida is not recognizable and the medusa described under this name are or B. britannica for ... [details]
Biseriaria is very poorly quoted. Besides Westendorp (1843), probably only Stechow (1910) in his Supplement zu den ... [details]
Presumably Biseriarie thuia, mentioned in Westendorp (1843) is a junior synonym of Sertularia thuja = Thuiaria ... [details]
B. nigritella is a doubtful species. Based on juvenile specimen and insufficiently described. [details]