1. Species Cyttarocylis ampulla Bachy et al., 2012
2. Species Cyttarocylis acutiformis Kofoid & Campbell, 1929 accepted as Cyttarocylis ampulla f. acutaformis Bachy et al., 2012 (junior synonym)
3. Species Cyttarocylis brandti Kofoid & Campbell, 1929 accepted as Cyttarocylis ampulla f. brandti Bachy et al., 2012 (junior synonym)
4. Species Cyttarocylis calyciformis Laackmann, 1907 accepted as Cymatocylis calyciformis (Laackmann) Laackmann, 1907 (unaccepted > superseded combination)
5. Species Cyttarocylis cassis (Haeckel, 1837) accepted as Cyttarocylis ampulla f. cassis Bachy et al., 2012 (junior synonym)
6. Species Cyttarocylis conica (Brandt, 1906) Kofoid & Campbell, 1929 accepted as Cyttarocylis ampulla f. conica Bachy et al., 2012
7. Species Cyttarocylis denticulata Ehrenburg, 1840 accepted as Parafavella denticulata (Ehrenberg, 1840)
8. Species Cyttarocylis drygalskii Laackmann, 1907 accepted as Cymatocylis drygalskii (Laackmann) Laackmann, 1907 (unaccepted > superseded combination)
9. Species Cyttarocylis eucecryphalus (Haeckel) Kofoid, 1912 accepted as Cyttarocylis ampulla f. eucecryphalus Bachy et al., 2012
10. Species Cyttarocylis gigantea Brandt, 1896 accepted as Parafavella gigantea (Brandt), Kofoid & Campbell, 1929 (unaccepted > superseded combination)
11. Species Cyttarocylis helix Jørgensen, 1900 accepted as Coxliella helix (Claparède & Lachmann, 1858) (unaccepted > superseded combination)
12. Species Cyttarocylis lanceolata Brandt, 1906 accepted as Xystonella lanceolata (Brandt, 1906) Brandt, 1909 (unaccepted > superseded combination)
13. Species Cyttarocylis longa Kofoid & Campbell, 1929 accepted as Cyttarocylis ampulla f. longa Bachy et al., 2012
14. Species Cyttarocylis magna (Brandt, 1906) Kofoid & Campbell, 1929 accepted as Cyttarocylis ampulla f. magna Bachy et al., 2012 (Described by Brandt as variant of Cyttarocylis cassis now known as a morpotype of C. ampulla)
15. Species Cyttarocylis media Brandt, 1896 accepted as Parafavella media (Brandt, 1896) (unaccepted > superseded combination)
16. Species Cyttarocylis nobilis Laackmann, 1907 accepted as Cymatocylis nobilis (Laackmann) Laackmann, 1910 (unaccepted > superseded combination)
17. Species Cyttarocylis norvegica (Jörgensen, 1900) accepted as Acanthostomella norvegica (Daday, 1887)
18. Species Cyttarocylis plagiostoma (Daday, 1887) accepted as Cyttarocylis ampulla Bachy et al., 2012 (junior synonym)
19. Species Cyttarocylis poculum Ostenfeld & Schmidt, 1902 accepted as Rhabdonella poculum (Ostenfeld & Schmidt, 1901) (unaccepted > superseded combination)
20. Species Cyttarocylis pseudannulata Jörgensen, 1901 accepted as Coxliella pseudoannulata (Jörgensen, 1901)
21. Species Cyttarocylis scalarius Brandt, 1906 accepted as Climacocylis scalaria (Brandt, 1906) (unaccepted > superseded combination)

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