The Order Anguilliformes contains these Families:

• 68. Anguillidae [freshwater eels]
• 69. Heterenchelyidae [heterenchelyids]
• 70. Moringuidae [spaghetti eels]
• 71. Chlopsidae [false morays]
• 72. Myrocongridae [myrocongrid eels]
• 73. Muraenidae [moray eels]
• 74. Synaphobranchidae [cutthroat eels]
• 75. Ophichthidae [snake eels and worm eels]
• 76. Colocongridae [colocongrids]
• 77. Derichthyidae [longneck eels]
• 78. Muraenesocidae [pike congers]
• 79. Nemichthyidae [snipe eels]
• 80. Congridae [conger eels]
• 81. Nettastomatidae [duckbill eels]
• 82. Serrivomeridae [sawtooth eels]