| Nominal Species (n = 55) | Present allocation (n = 44) | Ref. |
|---|---|---|
| Hydrophis atriceps Günther, 1864 | Hydrophis atriceps | 356 |
| Hydrophis belcheri Gray, 1849 | Hydrophis belcheri | 356 |
| Hydrophis bituberculatus Peters, 1872 | Hydrophis bituberculatus | 356 |
| Hydrophis brooki Günther, 1872 | Hydrophis brooki | 356 |
| Hydrophis caerulescens Shaw, 1802 | Hydrophis caerulescens | 356 |
| Hydrophis cantoris Günther, 1864 | Microcephalophis cantoris | 89489 |
| Hydrophis coggeri Kharin, 1984 | Hydrophis coggeri | 356 |
| Laticauda crockeri Slevin, 1934 | Laticauda crockeri | 75097 |
| Hydrus curtus Shaw, 1802 | Hydrophis curtus | 3477 |
| Hydrophis cyanocinctus Daudin, 1803 | Hydrophis cyanocinctus | 356 |
| Hydrophis czeblukovi Kharin, 1984 | Hydrophis czeblukovi | 356 |
| Hydrophis donaldi Ukuwela, Sanders & Fry, 2012 | Hydrophis donaldi | 3477 |
| Hydrophis elegans Gray, 1842 | Hydrophis elegans | 356 |
| Hydrophis fasciatus Schneider, 1799 | Hydrophis fasciatus | 356 |
| Hydrophis geometricus Smith, 1986 | Hydrophis czeblukovi | 75097 |
| Laticauda guineai Heatwole, Busack & Cogger, 2005 | Laticauda guineai | 3477 |
| Hydrophis guttata Murray, 1887 | Hydrophis stokesii | 801 |
| Lapemis hardwickii Gray, 1834 | Hydrophis curtus | 82760 |
| Hydrophis inornatus Gray, 1849 | Hydrophis inornatus | 356 |
| Hydrophis klossi Boulenger, 1912 | Hydrophis klossi | 356 |
| Hydrophis laboutei Rasmussen & Ineich, 2000 | Hydrophis laboutei | 356 |
| Hydrophis lamberti Smith, 1917 | Hydrophis lamberti | 356 |
| Hydrophis lapemoides Gray, 1849 | Hydrophis lapemoides | 356 |
| Hydrophis macdowelli Kharin, 1983 | Hydrophis macdowelli | 75097 |
| Hydrophis mamillaris Daudin, 1803 | Hydrophis mamillaris | 356 |
| Hydrophis mcdowelli Cogger, 2000 | Hydrophis macdowelli | 75097 |
| Hydrophis melanocephalus Gray, 1849 | Hydrophis melanocephalus | 356 |
| Hydrophis melanosoma Günther, 1864 | Hydrophis melanosoma | 356 |
| Hydrophis obscurus Daudin, 1803 | Hydrophis obscurus | 356 |
| Hydrophis ocellatus Gray, 1849 | Hydrophis ornatus | 3477 |
| Hydrophis ornatus Gray, 1842 | Hydrophis ornatus | 356 |
| Hydrophis ornatus ornatus Gray, 1842 | Hydrophis ornatus | 2352 |
| Hydrophis pachyceros Fischer, 1855 | Hydrophis pachyceros | 3477 |
| Hydrophis pacificus Boulenger, 1896 | Hydrophis pacificus | 356 |
| Hydrophis parviceps Smith, 1935 | Hydrophis parviceps | 356 |
| Acalyptus peronii Duméril, 1853 | Hydrophis peronii | 3477 |
| Pelamis platura Linnaeus, 1766 | Hydrophis platura | 3477 |
| Laticauda saintgironsi Cogger & Heatwole, 2005 | Laticauda saintgironsi | 75097 |
| Laticauda schistorhynchus Günther, 1864 | Laticauda schistorhynchus | 356 |
| Enhydrina schistosa (Daudin, 1803) | Hydrophis schistosus | 3477 |
| Hydrophis schistosus Daudin, 1803 | Hydrophis schistosus | 3477 |
| Laticauda semifasciata (Reinwardt, 1837) | Laticauda semifasciata | 3477 |
| Pseudolaticauda semifasciata Reinwardt, 1837 | Laticauda semifasciata | 75097 |
| Laticauda semifasciata schistorhynchus Günther, 1874 | Pseudolaticauda schistorhynchus | 84290 |
| Platurus semifasciatus Reinwardt in Schlegel, 1837 | Laticauda semifasciata | 3477 |
| Hydrophis semperi Garman, 1881 | Hydrophis semperi | 356 |
| Hydrophis sibauensis Rasmussen, Auliya & Böhme, 2001 | Hydrophis sibauensis | 356 |
| Hydrophis spiralis Shaw, 1802 | Hydrophis spiralis | 356 |
| Astrotia stokesii Gray, 1846 | Hydrophis stokesii | 356 |
| Hydrus stokesii Gray, 1846 | Hydrophis stokesii | 3477 |
| Hydrophis stricticollis Günther, 1864 | Hydrophis stricticollis | 356 |
| Hydrophis torquatus Günther, 1864 | Hydrophis torquatus | 356 |
| Thalassophina viperina Schmidt, 1852 | Hydrophis viperinus | 356 |
| Thalassophis viperina Schmidt, 1852 | Hydrophis viperinus | 3477 |
| Hydrophis vorisi Kharin, 1984 | Hydrophis vorisi | 356 |