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

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