| Scientific Name | Author | English Name |
|---|---|---|
| Halammohydra adherens | Swedmark & Teissier, 1958 | |
| Halammohydra andamanensis | Rao, 1978 | |
| Halammohydra chauhani | Rao, 1975 | |
| Halammohydra coronata | Clausen, 1967 | |
| Halammohydra intermedia | Clausen, 1967 | |
| Halammohydra octopodides | Remane, 1927 | |
| Halammohydra sagarensis | Chandrasekhara & Misra, 1980 | |
| Halammohydra schulzei | Remane, 1927 | |
| Halammohydra vermiformis | Swedmark & Teissier, 1857 | |
| Otohydra tremulans | Lacassagne, 1973 | |
| Otohydra vagans | Swedmark & Teissier, 1858 |