Dactyliosolen antarcticus Castracane, 1886 (uncertain > unassessed )
Dactyliosolen fragilissimus (Bergon) Hasle, 1996 accepted as Rhizosolenia fragilissima f. fragilissima Bergon, 1903
Dactyliosolen tenuijunctus (Manguin) Hasle, 1975 accepted as Rhizosolenia tenuijuncta Manguin, 1960
Proboscia alata (Brightwell) Sundström, 1986 (uncertain > unassessed )
Pseudosolenia calcar-avis (Schultze) B.G.Sundström, 1986
Rhizosolenia alata Brightwell, 1858 accepted as Proboscia alata (Brightwell) Sundström, 1986
Rhizosolenia alata f. gracillima (Cleve) Gran, 1908 accepted as Rhizosolenia gracillima Cleve, 1881
Rhizosolenia bergonii H.Peragallo, 1892
Rhizosolenia calcar-avis Schultze, 1858
Rhizosolenia faeroensis Ostenfeld, 1903 (uncertain > unassessed )
Rhizosolenia fragilissima Bergon, 1903 accepted as Dactyliosolen fragilissimus (Bergon) Hasle, 1996 accepted as Rhizosolenia fragilissima f. fragilissima Bergon, 1903
Rhizosolenia fragilissima f. fragilissima Bergon, 1903 (uncertain > unassessed )
Rhizosolenia gracillima Cleve, 1881 (uncertain > unassessed )
Rhizosolenia hebetata Bailey, 1856
Rhizosolenia hebetata f. semispina (Hensen) Gran, 1908 accepted as Rhizosolenia semispina Hensen, 1887
Rhizosolenia semispina Hensen, 1887 (uncertain > unassessed )
Rhizosolenia tenuijuncta Manguin, 1960 (uncertain > unassessed )