1. Subfamily Hippocampinae Bonaparte, 1835
   1. Genus Hippocampus Rafinesque, 1810
   2. Genus Hippocamphus accepted as Hippocampus Rafinesque, 1810 (misspelling)
2. Genus Hippocampus Rafinesque, 1810
3. Subfamily Syngnathinae Bonaparte, 1831
   1. Genus Acentronura Kaup, 1853
   2. Genus Amphelikturus Parr, 1930
   3. Genus Anarchopterus Hubbs, 1935
   4. Genus Apterygocampus Weber, 1913
   5. Genus Bhanotia Hora, 1926
   6. Genus Bryx Herald, 1940
   7. Genus Bulbonaricus Herald, 1953
   8. Genus Campichthys Whitley, 1931
   9. Genus Choeroichthys Kaup, 1856
   10. Genus Corythoichthys Kaup, 1853
   11. Genus Cosmocampus Dawson, 1979
   12. Genus Cylix Short & Trnski, 2021
   13. Genus Doryichthys Kaup, 1856
   14. Genus Doryrhamphus Kaup, 1856
   15. Genus Dunckerocampus Whitley, 1933
   16. Genus Enneacampus Dawson, 1981
   17. Genus Entelurus Duméril, 1870
   18. Genus Festucalex Whitley, 1931
   19. Genus Filicampus Whitley, 1948
   20. Genus Halicampus Kaup, 1856
   21. Genus Haliichthys Gray, 1859
   22. Genus Heraldia Paxton, 1975
   23. Genus Hippichthys Bleeker, 1849
   24. Genus Histiogamphelus McCulloch, 1914
   25. Genus Hypselognathus Whitley, 1948
   26. Genus Ichthyocampus Kaup, 1853
   27. Genus Idiotropiscis Whitley, 1947
   28. Genus Kaupus Whitley, 1951
   29. Genus Kimblaeus Dawson, 1980
   30. Genus Kyonemichthys Gomon, 2007
   31. Genus Leptoichthys Kaup, 1853
   32. Genus Leptonotus Kaup, 1853
   33. Genus Lissocampus Waite & Hale, 1921
   34. Genus Lophocampus Dawson, 1984
   35. Genus Maroubra Whitley, 1948
   36. Genus Micrognathus Duncker, 1912
   37. Genus Microphis Kaup, 1853
   38. Genus Minyichthys Herald & Randall, 1972
   39. Genus Mitotichthys Whitley, 1948
   40. Genus Nannocampus Günther, 1870
   41. Genus Nerophis Rafinesque, 1810
   42. Genus Notiocampus Dawson, 1979
   43. Genus Penetopteryx Lunel, 1881
   44. Genus Phoxocampus Dawson, 1977
   45. Genus Phycodurus Gill, 1896
   46. Genus Phyllopteryx Swainson, 1839
   47. Genus Pseudophallus Herald, 1940
   48. Genus Pugnaso Whitley, 1948
   49. Genus Siokunichthys Herald, 1953
   50. Genus Solegnathus Swainson, 1839
   51. Genus Stigmatopora Kaup, 1853
   52. Genus Stipecampus Whitley, 1948
   53. Genus Syngnathoides Bleeker, 1851
   54. Genus Syngnathus Linnaeus, 1758
   55. Genus Trachyrhamphus Kaup, 1853
   56. Genus Urocampus Günther, 1870
   57. Genus Vanacampus Whitley, 1951
   58. Genus Acanthognathus Duncker, 1912 accepted as Doryrhamphus Kaup, 1856
   59. Genus Acmonotus Philippi, 1896 accepted as Leptonotus Kaup, 1853
   60. Genus Atelurus Duméril, 1870 accepted as Acentronura Kaup, 1853
   61. Genus Bombonia Herre, 1927 accepted as Hippichthys Bleeker, 1849
   62. Genus Coelonotus Peters, 1855 accepted as Microphis Kaup, 1853
   63. Genus Corithoichthys accepted as Corythoichthys Kaup, 1853 (misspelling)
   64. Genus Corythiochthys accepted as Corythoichthys Kaup, 1853 (unaccepted > misspelling - incorrect subsequent spelling)
   65. Genus Corythoichutys accepted as Corythoichthys Kaup, 1853 (misspelling)
   66. Genus Corythroichthys accepted as Corythoichthys Kaup, 1853 (misspelling)
   67. Genus Dentirostrum Herald & Randall, 1972 accepted as Doryrhamphus Kaup, 1856
   68. Genus Dooryichthys accepted as Doryichthys Kaup, 1856 (misspelling)
   69. Genus Dorichthys accepted as Doryichthys Kaup, 1856 (misspelling)
   70. Genus Doryhamphus accepted as Doryrhamphus Kaup, 1856 (misspelling)
   71. Genus Doryichthis accepted as Doryichthys Kaup, 1856 (misspelling)
   72. Genus Doryramphus accepted as Doryrhamphus Kaup, 1856 (misspelling)
   73. Genus Doryrhamhus accepted as Doryrhamphus Kaup, 1856 (misspelling)
   74. Genus Dunckerocamphus accepted as Dunckerocampus Whitley, 1933 (misspelling)
   75. Genus Enchelyocampus Dawson & Allen, 1978 accepted as Bulbonaricus Herald, 1953
   76. Genus Gasterotokeus Heckel in Kaup, 1853 accepted as Syngnathoides Bleeker, 1851 (synonym)
   77. Genus Gastrotokeus accepted as Gasterotokeus Heckel in Kaup, 1853 accepted as Syngnathoides Bleeker, 1851 (misspelling)
   78. Genus Hemithylacus Kaup, 1856 accepted as Microphis Kaup, 1853
   79. Genus Hippicthys accepted as Hippichthys Bleeker, 1849 (misspelling)
   80. Genus Mannarichthys Dawson, 1977 accepted as Nannocampus Günther, 1870
   81. Genus Oostethus Hubbs, 1929 accepted as Microphis Kaup, 1853
   82. Genus Oxleyana Whitley, 1937 accepted as Hippichthys Bleeker, 1849
   83. Genus Parabelonichthys Fowler, 1943 accepted as Microphis Kaup, 1853
   84. Genus Paramicrophis Klausewitz, 1955 accepted as Microphis Kaup, 1853
   85. Genus Parasyngnathus Duncker, 1915 accepted as Hippichthys Bleeker, 1849
   86. Genus Penetopterix accepted as Penetopteryx Lunel, 1881 (misspelling)
   87. Genus Phanerotokeus Duncker, 1940 accepted as Halicampus Kaup, 1856
   88. Genus Phycodorus accepted as Phycodurus Gill, 1896 (misspelling)
   89. Genus Pristidoryrhamphus Fowler, 1944 accepted as Doryrhamphus Kaup, 1856
   90. Genus Schyphius accepted as Scyphius Risso, 1827 accepted as Nerophis Rafinesque, 1810 (misspelling)
   91. Genus Scyphicus accepted as Scyphius Risso, 1827 accepted as Nerophis Rafinesque, 1810 (misspelling)
   92. Genus Scyphius Risso, 1827 accepted as Nerophis Rafinesque, 1810
   93. Genus Siphonostoma Agassiz, 1846 accepted as Syngnathus Linnaeus, 1758 (synonym)
   94. Genus Siphostoma Rafinesque, 1810 accepted as Synghnathus accepted as Syngnathus Linnaeus, 1758
   95. Genus Solengnathus accepted as Solegnathus Swainson, 1839 (misspelling)
   96. Genus Solenognathus accepted as Solegnathus Swainson, 1839 (misspelling)
   97. Genus Stigmatophora accepted as Stigmatopora Kaup, 1853 (misspelling)
   98. Genus Sygnathoides accepted as Syngnathoides Bleeker, 1851 (misspelling)
   99. Genus Sygnathus accepted as Syngnathus Linnaeus, 1758 (misspelling)
   100. Genus Sygnatus accepted as Syngnathus Linnaeus, 1758 (unaccepted > misspelling - incorrect subsequent spelling)
   101. Genus Synghnathus accepted as Syngnathus Linnaeus, 1758 (misspelling)
   102. Genus Syngnatus accepted as Syngnathus Linnaeus, 1758 (misspelling)
   103. Genus Syphonostoma accepted as Siphonostoma Agassiz, 1846 accepted as Syngnathus Linnaeus, 1758 (misspelling)
   104. Genus Tiphle Rafinesque, 1810 accepted as Syngnathus Linnaeus, 1758 (synonym)
   105. Genus Trachyramphus accepted as Trachyrhamphus Kaup, 1853 (misspelling)
   106. Genus Typhle accepted as Tiphle Rafinesque, 1810 accepted as Syngnathus Linnaeus, 1758 (misspelling)
4. Genus Belonichthys Peters, 1868 accepted as Microphis Kaup, 1853 (synonym)
5. Genus Dermatostethus Gill, 1862 accepted as Syngnathus Linnaeus, 1758 (synonym)
6. Genus Syrictes Jordan & Evermann, 1927 accepted as Syngnathus Linnaeus, 1758
7. Genus Yozia Jordan & Snyder, 1901 accepted as Trachyrhamphus Kaup, 1853 (synonym)
8. Genus Ypzia accepted as Yozia Jordan & Snyder, 1901 accepted as Trachyrhamphus Kaup, 1853 (misspelling)

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