- Colpomenia peregrina Sauvageau, 1927
- Melanosiphon intestinalis (De A.Saunders) M.J.Wynne, 1969
- Petalonia fascia (O.F.Müller) Kuntze, 1898
- Petalonia zosterifolia (Reinke) Kuntze, 1898 accepted as Planosiphon zosterifolius (Reinke) McDevit & G.W.Saunders, 2017
- Planosiphon zosterifolius (Reinke) McDevit & G.W.Saunders, 2017
- Scytosiphon dotyi M.J.Wynne, 1969
- Scytosiphon lomentaria (Lyngbye) Link, 1833
- Stragularia clavata (Harvey) Hamel, 1939 (uncertain)
- Symphyocarpus strangulans Rosenvinge, 1893