50. Ocostaspora apilongissima E.B.G. Jones, R.G. Johnson et ST Moss, Bot. Mar. 26(7): 354 (1983) (Figure 2D)

Substrate and distribution: Marine wood. Bohuslän, Skaftö par., Fiskebäckskil, Rödbergsviken, 58°15′08″N, 11°27′57″E, VI 2017. New to Sweden .