| 品種 | 學者及命名者 | 亞種數 | 地理分布 |
| 環紋黑頭海蛇 | Hydrophis atriceps,Günther, 1864 | 0 | |
| 貝爾徹海蛇 | Hydrophis belcheri,Gray, 1849 | 0 | |
| H. bituberculatus | Hydrophis bituberculatus,Peters, 1873 | 0 | |
| H. brookii | Hydrophis brookii,Günther, 1872 | 0 | |
| 青灰海蛇 | Hydrophis caerulescens,Shaw, 1802 | 0 | |
| H. cantoris | Hydrophis cantoris,Günther, 1864 | 0 | |
| H. coggeri | Hydrophis coggeri,Kharin, 1984 | 0 | |
| 青環海蛇 | Hydrophis cyanocinctus,Daudin, 1803 | 0 | |
| 幾何海蛇 | Hydrophis czeblukovi,Kharin, 1984 | 0 | |
| H. elegans | Hydrophis elegans,Gray, 1842 | 0 | |
| 環紋海蛇 | Hydrophis fasciatus,Schneider, 1799 | 0 | |
| 小頭海蛇 | Hydrophis gracilis,Shaw, 1802 | 0 | |
| 平原海蛇 | Hydrophis inornatus,Gray, 1849 | 0 | |
| 金氏海蛇 | Hydrophis kingii,Boulenger, 1896 | 0 | |
| H. klossi | Hydrophis klossi,Boulenger, 1912 | 0 | |
| 蘭伯特海蛇 | Hydrophis lamberti,M.A. Smith, 1917 | 0 | |
| 波斯灣海蛇 | Hydrophis lapemoides,Gray, 1849 | 0 | |
| H. macdowelli | Hydrophis macdowelli,Kharin, 1983 | 0 | |
| H. major | Hydrophis major,Shaw, 1802 | 0 | |
| H. mamillaris | Hydrophis mamillaris,Daudin, 1803 | 0 | |
| 黑頭海蛇 | Hydrophis melanocephalus,Gray, 1849 | 0 | |
| 黑環海蛇 | Hydrophis melanosoma,Günther, 1864 | 0 | |
| H. nigrocinctus | Hydrophis nigrocinctus,Daudin, 1803 | 0 | |
| 羅素海蛇 | Hydrophis obscurus,Daudin, 1803 | 0 | |
| 淡灰海蛇 | Hydrophis ornatus,Gray, 1842 | 1 | |
| 大頭海蛇 | Hydrophis pacificus,Boulenger, 1896 | 0 | |
| 南越海蛇 | Hydrophis parviceps,M. A. Smith, 1935 | 0 | |
| 加曼海蛇 | Hydrophis semperi,Garman, 1881 | 0 | |
| 拉斯姆森海蛇 | Hydrophis sibauensis,Rasmussen et al., 2001 | 0 | |
| 黃海蛇 | Hydrophis spiralis,Shaw, 1802 | 0 | |
| H. stricticollis | Hydrophis stricticollis,Günther, 1864 | 0 | |
| H. torquatus | Hydrophis torquatus,Günther, 1864 | 2 | |
| H. vorisi | Hydrophis vorisi,Kharin, 1984 | 0 | |
| H. walli | Hydrophis walli,Kharin, 1989 | 0 | |