1. Species Danielssenia quadriseta Gee, 1988
2. Species Danielssenia reducta Gee, 1988
3. Species Danielssenia spiridonovi Garlitska & Chetoprud, 2021
4. Species Danielssenia spitsbergensis Gee & Huys, 1994
5. Species Danielssenia typica Boeck, 1873
6. Species Danielssenia eastwardae Coull, 1971 accepted as Sentirenia eastwardae (Coull, 1971) accepted as Jonesiella eastwardae (Coull, 1971) (Huys & Gee (1992) removed the species from Danielssenia to Sentirenia.)
7. Species Danielssenia fusiformis (Brady, 1880) accepted as Danielssenia typica Boeck, 1873 (junior subjective synonym, cf. Gee, 1988)
8. Species Danielssenia intermedia Wells, 1965 accepted as Fladenia intermedia (Wells, 1965) accepted as Danielssenia robusta Sars G.O., 1921 accepted as Fladenia robusta (Sars G.O., 1921) (junior subjective synonym, see Huys & Gee, 1993)
9. Species Danielssenia minuta Coull, 1969 accepted as Sentiropsis minuta (Coull, 1969) (Removed from Danielssenia to Sentiropsis by Huys & Gee (1996))
10. Species Danielssenia paraperezi Soyer, 1970 accepted as Danielssenia perezi Monard, 1935 accepted as Sentirenia perezi (Monard, 1935) accepted as Jonesiella fusiformis (Brady & Robertson, 1876) (Synonym of D. perezi after Huys & Gee (1992))
11. Species Danielssenia perezi Monard, 1935 accepted as Sentirenia perezi (Monard, 1935) accepted as Jonesiella fusiformis (Brady & Robertson, 1876) (Removed from Danielssenia to Sentirenia by Huys & Gee (1992))
12. Species Danielssenia robusta Sars G.O., 1921 accepted as Fladenia robusta (Sars G.O., 1921) (Removed to Fladenia by Huys & Gee (1993))
13. Species Danielssenia sibirica Sars G.O., 1898 accepted as Archisenia sibirica (Sars G.O., 1898) (Removed to Archisenia by Huys & Gee (1993))
14. Species Danielssenia spinipes Wells, 1967 accepted as Afrosenia spinipes (Wells, 1967) (Removed to Afrosenia by Huys & Gee (1996))
15. Species Danielssenia stefanssoni Willey, 1920 accepted as Danielssenia sibirica Sars G.O., 1898 accepted as Archisenia sibirica (Sars G.O., 1898) (Synonym after Huys & Gee (1993))
16. Species Danielssenia similis Chislenko, 1978 (uncertain > taxon inquirendum, Species inquirenda after Huys & Gee (1993))

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