1. Species Grantia aculeata Urban, 1908
2. Species Grantia arctica (Haeckel, 1872)
3. Species Grantia asconoides (Breitfuss, 1896)
4. Species Grantia atlantica Ridley, 1881
5. Species Grantia beringiana Hôzawa, 1918
6. Species Grantia breitfussi Van Soest, 2024
7. Species Grantia canadensis Lambe, 1896
8. Species Grantia capillosa (Schmidt, 1862)
9. Species Grantia clavigera (Schmidt, 1869)
10. Species Grantia comoxensis Lambe, 1893
11. Species Grantia compressa (Fabricius, 1780)
12. Species Grantia cupula (Haeckel, 1872)
13. Species Grantia extusarticulata (Carter, 1886)
14. Species Grantia fistulata Carter, 1886
15. Species Grantia foliacea sensu Breitfuss, 1898
16. Species Grantia genuina Row & Hôzawa, 1931
17. Species Grantia glabra Hôzawa, 1933
18. Species Grantia harai Hôzawa, 1929
19. Species Grantia hirsuta (Topsent, 1907)
20. Species Grantia indica Dendy, 1913
21. Species Grantia infrequens (Carter, 1886)
22. Species Grantia intermedia Thacker, 1908
23. Species Grantia invenusta Lambe, 1900
24. Species Grantia kempfi Borojevic & Peixinho, 1976
25. Species Grantia kujiensis Hôzawa, 1933
26. Species Grantia laevigata (Haeckel, 1872)
27. Species Grantia mexico Hôzawa, 1940
28. Species Grantia mirabilis (Fristedt, 1887)
29. Species Grantia monstruosa Breitfuss, 1898
30. Species Grantia nipponica Hôzawa, 1918
31. Species Grantia phillipsi Lambe, 1900
32. Species Grantia primitiva Brøndsted, 1926
33. Species Grantia ramulosa Dendy, 1924
34. Species Grantia singularis (Breitfuss, 1898)
35. Species Grantia socialis Borojevic, 1967
36. Species Grantia strobilus (Haeckel, 1872)
37. Species Grantia stylata Hôzawa, 1929
38. Species Grantia tenuis Urban, 1908
39. Species Grantia transgrediens Brøndsted, 1931
40. Species Grantia tuberosa Poléjaeff, 1883
41. Species Grantia uchidai Hôzawa & Tanita, 1941
42. Species Grantia vosmaeri Dendy, 1893
43. Species Grantia arabica Miklucho-Maclay in Haeckel, 1872 accepted as Leucandra bathybia (Haeckel, 1869) (genus transfer & junior synonym)
44. Species Grantia botryoides (Ellis & Solander, 1786) accepted as Leucosolenia botryoides (Ellis & Solander, 1786)
45. Species Grantia ciliata (Fabricius, 1780) accepted as Sycon ciliatum (Fabricius, 1780) (genus transfer)
46. Species Grantia cinnamomea Nardo, 1833 accepted as Axinella cinnamomea (Nardo, 1833) (genus transfer)
47. Species Grantia cirrata (Jenkin, 1908) accepted as Grantia hirsuta (Topsent, 1907) (genus transfer)
48. Species Grantia clathrus Schmidt, 1864 accepted as Clathrina clathrus (Schmidt, 1864) (genus transfer)
49. Species Grantia cliftoni Bowerbank in Dendy & Row, 1913 accepted as Dendya clathrata (Carter, 1883) (genus transfer & junior synonym)
50. Species Grantia coriacea (Montagu, 1814) accepted as Clathrina coriacea (Montagu, 1814) (genus transfer)
51. Species Grantia ensata Bowerbank, 1858 accepted as Aphroceras ensata (Bowerbank, 1858) (genus transfer)
52. Species Grantia fistulosa Johnston, 1842 accepted as Leucandra fistulosa (Johnston, 1842) (genus transfer)
53. Species Grantia foveolaria Nardo, 1833 accepted as Axinella cannabina (Esper, 1794) (genus transfer and junior synonym)
54. Species Grantia gracilis (Lendenfeld, 1885) accepted as Grantessa gracilis (Lendenfeld, 1885) (genus transfer)
55. Species Grantia himantia (Haeckel, 1869) accepted as Clathrina coriacea (Montagu, 1814) (genus transfer & junior synonym)
56. Species Grantia labyrinthica (Carter, 1878) accepted as Teichonopsis labyrinthica (Carter, 1878) (genus transfer)
57. Species Grantia lacunosa Johnston, 1842 accepted as Clathrina lacunosa (Johnston, 1842) (genus transfer)
58. Species Grantia lieberkuehni Schmidt, 1862 accepted as Leucosolenia botryoides (Ellis & Solander, 1786) (genus transfer & junior synonym)
59. Species Grantia lieberkuehni Graeffe, 1882 accepted as Ascandra falcata Haeckel, 1872 (genus transfer & junior synonym)
60. Species Grantia multicavata Bean in Johnston, 1842 accepted as Clathrina coriacea (Montagu, 1814) (genus transfer & junior synonym)
61. Species Grantia nivea (Grant, 1826) accepted as Leuconia nivea (Grant, 1826)
62. Species Grantia pennigera (Haeckel, 1872) accepted as Grantia compressa (Fabricius, 1780) (junior synonym)
63. Species Grantia polymorpha Haeckel, 1872 accepted as Grantia compressa (Fabricius, 1780) (junior synonym)
64. Species Grantia pulchra Schmidt, 1862 accepted as Clathrina blanca (Miklucho-Maclay, 1868) (genus transfer & junior synonym)
65. Species Grantia pulverulenta (Grant, 1826) accepted as Leucandra ananas (Montagu, 1814) (genus transfer & junior synonym)
66. Species Grantia ramosa Smith in Haeckel, 1872 accepted as Grantessa ramosa (Smith in Haeckel, 1872) (nomen nudum)
67. Species Grantia scottia (Jenkin, 1908) accepted as Dermatreton scotti (Jenkin, 1908) accepted as Scytotreton scotti (Jenkin, 1908)
68. Species Grantia solida Schmidt, 1862 accepted as Leucetta solida (Schmidt, 1862) (genus transfer)
69. Species Grantia striatula Bowerbank, 1864 accepted as Clathrina lacunosa (Johnston, 1842) (genus transfer & junior synonym)
70. Species Grantia subhispida Carter, 1886 accepted as Sycon subhispidum (Carter, 1886) (genus transfer)
71. Species Grantia tessellata Bowerbank, 1866 accepted as Sycon elegans (Bowerbank, 1845) (genus transfer and junior synonym)
72. Species Grantia truncata Topsent, 1907 accepted as Achramorpha truncata (Topsent, 1907) (genus transfer)
73. Species Grantia utriculus (Schmidt, 1869) accepted as Sycandra utriculus (Schmidt, 1869) (genus transfer)
74. Species Grantia virgultosa Bowerbank in Haeckel, 1872 accepted as Sycon gelatinosum (Blainville, 1834) (genus transfer & junior synonym)
75. Species Grantia vitiosa Brøndsted, 1931 accepted as Breitfussia vitiosa (Brøndsted, 1931) accepted as Dermatreton vitiosum (Brøndsted, 1931) (genus transfer)
76. Species Grantia waguensis (Hôzawa, 1940) accepted as Paragrantia waguensis Hôzawa, 1940 (reverted genus transfer)

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