n = 43
| Scientific Name | Author | Valid Name | Family | English Name |
|---|---|---|---|---|
| Macrognathus aculeata | (Bloch, 1786) | Macrognathus aculeatus | Mastacembelidae | Lesser spiny eel |
| Macrognathus aculeatum | (Bloch, 1786) | Macrognathus aculeatus | Mastacembelidae | Lesser spiny eel |
| Macrognathus aculeatus | (Bloch, 1786) | Macrognathus aculeatus | Mastacembelidae | Lesser spiny eel |
| Macrognathus albus | Plamoottil & Abraham, 2014 | Macrognathus albus | Mastacembelidae | Spotless spiny eel |
| Macrognathus aral | (Bloch & Schneider, 1801) | Macrognathus aral | Mastacembelidae | One-stripe spinyeel |
| Macrognathus armatus | Lacepède, 1800 | Mastacembelus armatus | Mastacembelidae | Zig-zag eel |
| Macrognathus aureus | Britz, 2010 | Macrognathus aureus | Mastacembelidae | |
| Macrognathus brevirostris | Gronow, 1854 | Hemiramphus brasiliensis | Hemiramphidae | Ballyhoo halfbeak |
| Macrognathus cadiocellatus | (Boulenger, 1893) | Macrognathus caudiocellatus | Mastacembelidae | |
| Macrognathus cardiocellatus | (Boulenger, 1893) | Macrognathus caudiocellatus | Mastacembelidae | |
| Macrognathus caudatus | McClelland, 1842 | Mastacembelus armatus | Mastacembelidae | Zig-zag eel |
| Macrognathus caudiocellatus | (Boulenger, 1893) | Macrognathus caudiocellatus | Mastacembelidae | |
| Macrognathus circumcinctus | (Hora, 1924) | Macrognathus circumcinctus | Mastacembelidae | |
| Macrognathus dorsiocellatus | Britz, 2010 | Macrognathus dorsiocellatus | Mastacembelidae | |
| Macrognathus erythrotaenia | (Bleeker, 1850) | Mastacembelus erythrotaenia | Mastacembelidae | Fire eel |
| Macrognathus fasciatus | Plamoottil & Abraham, 2014 | Macrognathus fasciatus | Mastacembelidae | Yellow banded spiny eel |
| Macrognathus guentheri | (Day, 1865) | Macrognathus guentheri | Mastacembelidae | Malabar spinyeel |
| Macrognathus guntheri | (Day, 1865) | Macrognathus guentheri | Mastacembelidae | Malabar spinyeel |
| Macrognathus hamiltoni | McClelland, 1844 | Mastacembelus armatus | Mastacembelidae | Zig-zag eel |
| Macrognathus hamiltonii | McClelland, 1844 | Mastacembelus armatus | Mastacembelidae | Zig-zag eel |
| Macrognathus jammuensis | Malhotra & Singh Dutta, 1975 | Macrognathus aral | Mastacembelidae | One-stripe spinyeel |
| Macrognathus keithi | (Herre, 1940) | Macrognathus keithi | Mastacembelidae | |
| Macrognathus kris | Ng & Tan, 2020 | Genus Species | New species | |
| Macrognathus lineatomaculatus | Britz, 2010 | Macrognathus lineatomaculatus | Mastacembelidae | |
| Macrognathus loricatus | Gronow, 1854 | Lepisosteus osseus | Lepisosteidae | Longnose gar |
| Macrognathus maculatus | (Cuvier, 1832) | Macrognathus maculatus | Mastacembelidae | Frecklefin eel |
| Macrognathus malabaricus | (Jerdon, 1849) | Macrognathus malabaricus | Mastacembelidae | |
| Macrognathus meklongensis | Roberts, 1986 | Macrognathus meklongensis | Mastacembelidae | |
| Macrognathus morehensis | Arunkumar & Tombi Singh, 2000 | Macrognathus morehensis | Mastacembelidae | |
| Macrognathus obscurus | Britz, 2010 | Macrognathus obscurus | Mastacembelidae | |
| Macrognathus orthosemos | Britz & Kottelat, 2020 | Genus Species | New species | |
| Macrognathus pancalus | Hamilton, 1822 | Macrognathus pancalus | Mastacembelidae | Barred spiny eel |
| Macrognathus pavo | Britz, 2010 | Macrognathus pavo | Mastacembelidae | |
| Macrognathus pentophthalmos | (Gronow, 1854) | Macrognathus pentophthalmos | Mastacembelidae | |
| Macrognathus puncalus | Hamilton, 1822 | Macrognathus pancalus | Mastacembelidae | Barred spiny eel |
| Macrognathus scolopax | Gronow, 1854 | Belone belone | Belonidae | Garfish |
| Macrognathus semiocellatus | Roberts, 1986 | Macrognathus semiocellatus | Mastacembelidae | |
| Macrognathus siamensis | (Günther, 1861) | Macrognathus siamensis | Mastacembelidae | Peacock eel |
| Macrognathus siangensis | Arunkumar, 2016 | Genus Species | New species | |
| Macrognathus taeniagaster | (Fowler, 1935) | Macrognathus taeniagaster | Mastacembelidae | |
| Macrognathus tapirus | Kottelat & Widjanarti, 2005 | Macrognathus tapirus | Mastacembelidae | |
| Macrognathus undulatus | McClelland, 1844 | Mastacembelus undulatus | Mastacembelidae | |
| Macrognathus zebrinus | (Blyth, 1858) | Macrognathus zebrinus | Mastacembelidae | Zebra spiny eel |