1. Species Botrylloides alacranensis Palomino-Alvarez, Nydam, Rocha & Simões, 2022
2. Species Botrylloides ampullarius Palomino-Alvarez, Nydam, Rocha & Simões, 2022
3. Species Botrylloides anceps (Herdman, 1891)
4. Species Botrylloides aureus Sars, 1851
5. Species Botrylloides catilitinae Palomino-Alvarez, Nydam, Rocha & Simões, 2022
6. Species Botrylloides chevalensis Herdman, 1906
7. Species Botrylloides conchyliatus Ekins, 2019
8. Species Botrylloides crystallinus A. Bay-Nouailhat, W. Bay-Nouailhat, Gasparini & Brunetti, 2020
9. Species Botrylloides diegensis Ritter & Forsyth, 1917
10. Species Botrylloides fuscus Saito & Watanabe, 1985
11. Species Botrylloides giganteus (Pérès, 1949)
12. Species Botrylloides israeliensis Brunetti, 2009
13. Species Botrylloides leachii (Savigny, 1816)
14. Species Botrylloides lenis Saito & Watanabe, 1985
15. Species Botrylloides lentus Saito & Watanabe, 1985
16. Species Botrylloides magnicoecus (Hartmeyer, 1912)
17. Species Botrylloides niger Herdman, 1886
18. Species Botrylloides perspicuus (Herdman, 1886)
19. Species Botrylloides pizoni Brunetti & Mastrototaro, 2012
20. Species Botrylloides praelongus Atsumi & Saito, 2011
21. Species Botrylloides saccus Kott, 2003
22. Species Botrylloides simodensis Saito & Watanabe, 1981
23. Species Botrylloides superbus (Drasche, 1883)
24. Species Botrylloides tyreus Herdman, 1886
25. Species Botrylloides violaceus Oka, 1927
26. Species Botrylloides albicans Milne Edwards, 1841 accepted as Botrylloides leachii (Savigny, 1816) (original combination)
27. Species Botrylloides aurantium Oka, 1927 accepted as Botryllus aurantius (Oka, 1927) accepted as Botrylloides violaceus Oka, 1927 (original combination)
28. Species Botrylloides aurea Sars, 1851 accepted as Botrylloides aureus Sars, 1851 (incorrect original spelling)
29. Species Botrylloides aureum Sars, 1851 accepted as Botrylloides aureus Sars, 1851 (incorrect original spelling)
30. Species Botrylloides boloniense Giard, 1875 accepted as Botrylloides leachii (Savigny, 1816) (original combination)
31. Species Botrylloides carnosum Oka, 1927 accepted as Botrylloides violaceus Oka, 1927 (original combination)
32. Species Botrylloides chazaliei Sluiter, 1898 accepted as Botrylloides nigrum Herdman, 1886 accepted as Botrylloides niger Herdman, 1886 (original combination)
33. Species Botrylloides chevalense Herdman, 1906 accepted as Botrylloides chevalensis Herdman, 1906 (gender change)
34. Species Botrylloides clavelina Giard, 1872 accepted as Botrylloides leachii (Savigny, 1816) (original combination)
35. Species Botrylloides cyanescens Giard, 1888 accepted as Botrylloides leachii (Savigny, 1816) (original combination)
36. Species Botrylloides diegense Ritter & Forsyth, 1917 accepted as Botrylloides diegensis Ritter & Forsyth, 1917 (Misspelling in Van Name (1945))
37. Species Botrylloides eligulatum Beniaminson, 1975 accepted as Botryllus tuberatus Ritter & Forsyth, 1917 (original combination)
38. Species Botrylloides fulgurale Herdman, 1886 accepted as Botrylloides leachii (Savigny, 1816) (original combination)
39. Species Botrylloides giganteum (Pérès, 1949) accepted as Botrylloides giganteus (Pérès, 1949) (gender change)
40. Species Botrylloides gregalis Sluiter, 1898 accepted as Botryllus gregalis (Sluiter, 1898) (original combination)
41. Species Botrylloides insigne Giard, 1872 accepted as Botrylloides leachii (Savigny, 1816) (original combination)
42. Species Botrylloides israeliense Brunetti, 2009 accepted as Botrylloides israeliensis Brunetti, 2009
43. Species Botrylloides lateritium Beniaminson, 1975 accepted as Botrylloides violaceus Oka, 1927 (original combination)
44. Species Botrylloides leachi (Savigny, 1816) accepted as Botrylloides leachii (Savigny, 1816) (literature misspelling)
45. Species Botrylloides leptum Herdman, 1899 accepted as Botrylloides leachii (Savigny, 1816) (original combination)
46. Species Botrylloides maeandrium Sluiter, 1898 accepted as Botryllus maeandrius (Sluiter, 1898) (original combination)
47. Species Botrylloides maeandrius Sluiter, 1898 accepted as Botryllus maeandrius (Sluiter, 1898) (literature misspelling)
48. Species Botrylloides magnicoecum (Hartmeyer, 1912) accepted as Botrylloides magnicoecus (Hartmeyer, 1912) (gender change)
49. Species Botrylloides magnicoecus Hartmeyer, 1912 accepted as Botrylloides magnicoecum (Hartmeyer, 1912) accepted as Botrylloides magnicoecus (Hartmeyer, 1912) (unjustified emendation)
50. Species Botrylloides magnum (Ritter, 1901) accepted as Botryllus magnus Ritter, 1901 (new combination)
51. Species Botrylloides magnus (Ritter, 1901) accepted as Botryllus magnus Ritter, 1901 (synonym)
52. Species Botrylloides meandrinum Sluiter accepted as Botryllus maeandrius (Sluiter, 1898) (synonym)
53. Species Botrylloides namei (Hartmeyer & Michaelsen, 1928) accepted as Botryllus planus (Van Name, 1902) (new combination)
54. Species Botrylloides nigrum Herdman, 1886 accepted as Botrylloides niger Herdman, 1886 (misspelling)
55. Species Botrylloides parvulum Huitfeld-Kaas, 1896 accepted as Botrylloides leachii (Savigny, 1816) (unjustified emendation)
56. Species Botrylloides parvulus Huitfeld-Kaas, 1896 accepted as Botrylloides leachii (Savigny, 1816) (original combination)
57. Species Botrylloides perspicuum Herdman, 1886 accepted as Botrylloides perspicuus (Herdman, 1886) (incorrect original spelling)
58. Species Botrylloides planus (Van Name, 1902) accepted as Botryllus planus (Van Name, 1902) (synonym)
59. Species Botrylloides prostratum Giard, 1872 accepted as Botrylloides leachii (Savigny, 1816) (original combination)
60. Species Botrylloides purpureum Drasche, 1883 accepted as Botrylloides leachii (Savigny, 1816) (junior homonym)
61. Species Botrylloides pusilla Alder, 1863 accepted as Botrylloides leachii (Savigny, 1816) (original combination)
62. Species Botrylloides radiata Alder & Hancock, 1848 accepted as Botrylloides leachii (Savigny, 1816) (original combination)
63. Species Botrylloides ramulosa Alder & Hancock, 1848 accepted as Botrylloides leachii (Savigny, 1816) (original combination)
64. Species Botrylloides rotifera Milne Edwards, 1841 accepted as Botrylloides leachii (Savigny, 1816) (original combination)
65. Species Botrylloides rubrum Milne Edwards, 1841 accepted as Botrylloides leachii (Savigny, 1816) (original combination)
66. Species Botrylloides rugosum Gottschaldt, 1894 accepted as Botrylloides aureum Sars, 1851 accepted as Botrylloides aureus Sars, 1851 (original combination)
67. Species Botrylloides sparsa Alder, 1863 accepted as Botrylloides leachii (Savigny, 1816) (original combination)
68. Species Botrylloides superbum (Drasche, 1883) accepted as Botrylloides superbus (Drasche, 1883) (gender change)
69. Species Botrylloides translucidum Hartmeyer, 1912 accepted as Botrylloides leachii (Savigny, 1816) (original combination)
70. Species Botrylloides tyreum Herdman, 1886 accepted as Botrylloides tyreus Herdman, 1886 (gender change)
71. Species Botrylloides vinosa Alder & Hancock, 1912 accepted as Botrylloides leachii (Savigny, 1816) (original combination)
72. Species Botrylloides violaceum Oka, 1927 accepted as Botrylloides violaceus Oka, 1927 (incorrect original spelling)

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