1. Species Odontella aurita (Lyngbye) C.Agardh, 1832
2. Species Odontella atlantica (Frenguelli) E.A.Sar, 2007 accepted as Zygoceros atlanticus (Frenguelli) Sar, 2015 (unaccepted > junior subjective synonym)
3. Species Odontella granulata (Roper) R.Ross in Hartley, 1986 † accepted as Cerataulus granulatus (Roper) P.A. Sims & D.M. Williams, 2018 † (Invalid)
4. Species Odontella subaequa Kützing, 1844 accepted as Biddulphia subaequa (Kützing) J.Ralfs, 1861 (basionym)
5. Species Odontella affinis (Grunow) Cleve, 1901 accepted as Triceratium affine Grunow in Van Heurck, 1883 (uncertain > unassessed)
6. Species Odontella amphicephala Ehrenberg, 1845 (uncertain > unassessed)
7. Species Odontella angulata (Schmidt in Schmidt et al.) De Toni, 1894 accepted as Biddulphia angulata Schmidt in Schmidt et al., 1888 (uncertain > unassessed)
8. Species Odontella antediluviana (Ehrenberg) M. Peragallo, 1903 accepted as Amphitetras antediluviana var. antediluviana Ehrenberg, 1840 (uncertain > unassessed)
9. Species Odontella barbadensis (Greville) De Toni, 1894 accepted as Biddulphia barbadensis Greville, 1866 (uncertain > unassessed)
10. Species Odontella biddulphioides Wigand, 1860 (uncertain > unassessed)
11. Species Odontella birostrum (Brun) De Toni, 1894 accepted as Biddulphia birostrum Brun, 1891 (uncertain > unassessed)
12. Species Odontella boryana Pantocsek, 1889 (uncertain > unassessed)
13. Species Odontella brittoniana (Kain & E.A. Schultze) De Toni, 1894 accepted as Biddulphia brittoniana C.H.Kain & E.A.Schultze, 1889 † (uncertain > unassessed)
14. Species Odontella calamus (Brun & Tempère) Schrader in Schrader & Fenner, 1976 accepted as Biddulphia calamus Tempère & Brun, 1889 † (uncertain > unassessed)
15. Species Odontella chinensis (Greville) Grunow, 1884 accepted as Biddulphia sinensis Greville, 1866 (uncertain > unassessed)
16. Species Odontella cookiana (Kain & E.A. Schultze) De Toni, 1894 accepted as Biddulphia cookiana Kain & Schultze, 1889 (uncertain > unassessed)
17. Species Odontella cornuta (J. Brun) Schrader in Schrader & Fenner, 1976 accepted as Biddulphia cornuta Brun, 1894 (uncertain > unassessed)
18. Species Odontella cristata Fide Grunow, 1884 (uncertain > unassessed)
19. Species Odontella decorata (Greville) De Toni, 1894 accepted as Biddulphia decorata Greville, 1865 (uncertain > unassessed)
20. Species Odontella desmidium Ehrenberg, 1838 (uncertain > unassessed)
21. Species Odontella discigera (Grunow) De Toni (uncertain > unassessed)
22. Species Odontella dissipata (Grove & Sturt) De Toni, 1894 accepted as Biddulphia dissipata Grove & Sturt, 1887 (uncertain > unassessed)
23. Species Odontella dubia (Brightwell) Cleve, 1901 accepted as Pseudictyota dubium (Brightwell) P.A. Sims & D. M. Williams in Sims et al., 2018 (uncertain > unassessed)
24. Species Odontella edwardsii (Febiger ex H.L. Smith) Grunow, 1884 accepted as Biddulphia edwardsii Febiger ex Grunow, 1882 (uncertain > unassessed)
25. Species Odontella elegans (Van Heurck) De Toni, 1894 accepted as Amphitetras elegans Greville, 1866 (uncertain > unassessed)
26. Species Odontella expedita (Janisch in Schmidt et al.) De Toni, 1894 accepted as Biddulphia expedita Janisch in Schmidt et al., 1888 (uncertain > unassessed)
27. Species Odontella favus (Ehrenberg) Cleve, 1901 accepted as Triceratium favus f. favus Ehrenberg, 1840 (uncertain > unassessed)
28. Species Odontella favus (Ehrenberg) M. Peragallo, 1903 accepted as Triceratium favus f. favus Ehrenberg, 1840 (uncertain > unassessed)
29. Species Odontella febigeri Grunow, 1884 (uncertain > unassessed)
30. Species Odontella fenestrata (Grunow in Schmidt et al.) De Toni, 1894 accepted as Biddulphia fenestrata (Grove & Sturt) Grunow in Schmidt et al., 1888 accepted as Auliscus fenestratus Grove & Sturt, 1887 (uncertain > unassessed)
31. Species Odontella filiformis Ehrenberg, 1838 (uncertain > unassessed)
32. Species Odontella fimbriata (Greville) Grunow, 1884 † accepted as Parodontella fimbriata (Greville) D. M. Williams & P.A. Sims in Sims et al., 2018 † (uncertain > unassessed)
33. Species Odontella gallapagensis (Cleve) De Toni, 1894 accepted as Biddulphia gallapagensis Cleve, 1881 (uncertain > unassessed)
34. Species Odontella hastata (Greville) J. Fenner ex Williams, 1988 accepted as Hemiaulus hastatus Greville, 1865 (uncertain > unassessed)
35. Species Odontella heibergii Grunow, 1884 (uncertain > unassessed)
36. Species Odontella laevis (Ehrenberg) Kützing, 1849 accepted as Denticella levis Ehrenberg, 1844 (uncertain > unassessed)
37. Species Odontella litigiosa (Van Heurck) Hoban, 1980 accepted as Biddulphia litigiosa Van Heurck, 1909 (uncertain > unassessed)
38. Species Odontella longicruris (Greville) M.A.Hoban, 1983 accepted as Hobaniella longicruris (Greville) P.A. Sims & D.M. Williams in Sims et al., 2018 (uncertain > unassessed)
39. Species Odontella macdonaldii (Norman in Pritchard) Grunow, 1884 accepted as Biddulphia macdonaldii Norman in Pritchard, 1861 (uncertain > unassessed)
40. Species Odontella mammosa (Greville) De Toni, 1894 accepted as Biddulphia mammosa Greville, 1866 (uncertain > unassessed)
41. Species Odontella manca (Janisch in Schmidt et al.) De Toni, 1894 accepted as Biddulphia manca Janisch in Schmidt et al., 1888 (uncertain > unassessed)
42. Species Odontella minutissima (Greville) De Toni, 1894 accepted as Biddulphia minutissima Greville, 1886 (uncertain > unassessed)
43. Species Odontella mobilensis (J. W. Bailey) Grunow, 1884 (uncertain > unassessed)
44. Species Odontella mobiliensis (J.W.Bailey) Grunow, 1884 (uncertain > unassessed)
45. Species Odontella neogradensis Pantocsek, 1886 (uncertain > unassessed)
46. Species Odontella oamaruensis (Grove & Sturt) De Toni, 1894 accepted as Biddulphia oamaruensis Grove & Sturt, 1886 (uncertain > unassessed)
47. Species Odontella obtusa Kützing, 1844 (uncertain > unassessed)
48. Species Odontella pedalis (Grunow & Sturt) Grunow, 1888 accepted as Biddulphia pedalis Grove & Sturt, 1887 (uncertain > unassessed)
49. Species Odontella plana (Schmidt in Schmidt et al.) De Toni, 1894 accepted as Pseudictyota plana (A. Schmidt) P.A. Sims & D. M. Williams in Sims et al., 2018 (uncertain > unassessed)
50. Species Odontella polycanthos (Brun) De Toni, 1894 (uncertain > unassessed)
51. Species Odontella polymera (Ehrenberg) Kützing, 1849 accepted as Denticella polymera Ehrenberg, 1844 (1845) (uncertain > unassessed)
52. Species Odontella polymorpha Kützing accepted as Isthmia polymorpha Montagne, 1840 (uncertain > unassessed)
53. Species Odontella primordialis (Brun) De Toni, 1894 accepted as Biddulphia primordialis var. primordialis Brun, 1891 (uncertain > unassessed)
54. Species Odontella pygmea Pantocsek, 1892 (uncertain > unassessed)
55. Species Odontella regia (Schultze) Simonsen, 1974 (uncertain > unassessed)
56. Species Odontella reticulata (Roper) De Toni, 1894 accepted as Biddulphia reticulata f. reticulata Roper, 1859 (uncertain > unassessed)
57. Species Odontella retiformis (A. Mann) von Stosch, 1985 accepted as Biddulphia retiformis Mann, 1925 (uncertain > unassessed)
58. Species Odontella rhombus (Ehrenberg) Kützing, 1849 accepted as Zygoceros rhombus Ehrenberg, 1839 (uncertain > unassessed)
59. Species Odontella roperiana (Greville) De Toni, 1894 accepted as Biddulphia roperiana f. roperiana Greville, 1859 (uncertain > unassessed)
60. Species Odontella rostrata (Hustedt) Simonsen, 1987 accepted as Biddulphia rostrata var. rostrata Hustedt, 1939 (uncertain > unassessed)
61. Species Odontella separanda (Janisch in Schmidt et al.) De Toni, 1894 accepted as Biddulphia separanda Janisch in Schmidt et al., 1888 (uncertain > unassessed)
62. Species Odontella septentrionala Schrader in Schrader & Fenner, 1976 (uncertain > unassessed)
63. Species Odontella sinensis (Greville) Grunow, 1884 accepted as Biddulphia sinensis Greville, 1866 (uncertain > unassessed)
64. Species Odontella spinosa (Greville) Grunow, 1884 accepted as Biddulphia spinosa var. spinosa Greville, 1865 (uncertain > unassessed)
65. Species Odontella spinulosa (Grunow) Cleve, 1901 accepted as Triceratium spinulosum Grunow in Schmidt et al., 1885 (uncertain > unassessed)
66. Species Odontella striata Reinsch, 1890 (uncertain > unassessed)
67. Species Odontella sublevis (Grunow in Van Heurck) De Toni, 1894 (uncertain > unassessed)
68. Species Odontella tentaculifera (Cleve) De Toni, 1894 accepted as Biddulphia tentaculifera Cleve, 1881 (uncertain > unassessed)
69. Species Odontella tetraodon Ehrenberg, 1840 (uncertain > unassessed)
70. Species Odontella tubulosa (Brun) De Toni, 1894 accepted as Biddulphia tubulosa Brun, 1891 (uncertain > unassessed)
71. Species Odontella tumida (Ehrenberg) Kützing, 1849 accepted as Denticella tumida Ehrenberg, 1844 (1845) (uncertain > unassessed)
72. Species Odontella turgida (Ehrenberg) Kützing, 1844 accepted as Denticella turgida Ehrenberg, 1840 (uncertain > unassessed)
73. Species Odontella unidentata Ehrenberg, 1838 (uncertain > unassessed)
74. Species Odontella weissflogii (Grunow) Grunow, 1884 accepted as Biddulphia weissflogii Grunow, 1882 (uncertain > unassessed)

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