| Species name | Common name | Distribution | Max. Length (cm) | 
|---|---|---|---|
| Myzostoma alatum (Graff, 1884) | Mediterranean Sea | ||
| Myzostoma ambiguum (Graff, 1887) | Indo-Pacific | ||
| Myzostoma antennatum Graff, 1884 | Northwest Pacific | ||
| Myzostoma areolatum Graff, 1884 | Western Central Atlantic | ||
| Myzostoma armatae Grygier, 1989 | Western Central Atlantic | 0.306 | |
| Myzostoma atrum Atkins, 1927 | Western Central Pacific | ||
| Myzostoma attenuatum Grygier, 1989 | Indo-Pacific | 0.446 | |
| Myzostoma bicaudatum Graff, 1883 | Western Central Atlantic | ||
| Myzostoma brachiatum Graff, 1877 | Western Central Pacific | ||
| Myzostoma brevicirrum Graff, 1884 | Western Central Pacific | 0.5 | |
| Myzostoma brevipes Graff, 1884 | Western Central Atlantic | ||
| Myzostoma calycotyle Graff, 1884 | Western Central Pacific | ||
| Myzostoma capitocutis Eeckhaut, VandenSpiegel & Grygier, 1994 | Western Central Pacific | ||
| Myzostoma chelonium McClendon, 1906 | Indo-Pacific | ||
| Myzostoma chelonoidium McClendon, 1906 | Northwest Pacific | ||
| Myzostoma cirriferum Leuckart, 1827 | Northeast Atlantic and the Mediterranean Sea | ||
| Myzostoma clarki McClendon, 1906 | Northwest Pacific | 0.73 | |
| Myzostoma compressum Graff, 1884 | Antarctic Indian Ocean | ||
| Myzostoma coriaceum (Graff, 1884) | Indo-West Pacific | ||
| Myzostoma coronatum Graff, 1884 | Antarctic Indian Ocean | ||
| Myzostoma costatum Graff, 1884 | Indo-Pacific | ||
| Myzostoma crenatum Graff, 1884 | Western Central Atlantic | ||
| Myzostoma cuniculus (Eeckhaut, Grygier & Deheyn, 1998) | Western Central Pacific | ||
| Myzostoma cysticolum Graff, 1884 | Atlantic and Pacific Oceans | 0.42 | |
| Myzostoma deani McClendon, 1906 | Northeast Pacific | ||
| Myzostoma dentatum Graff, 1884 | Western Central Pacific | ||
| Myzostoma divisor Grygier, 1989 | Antarctica | 0.212 | |
| Myzostoma echinus Graff, 1884 | Indo-Pacific | ||
| Myzostoma elegans Graff, 1877 | Indo-West Pacific | ||
| Myzostoma fisheri Wheeler, 1905 | Eastern Central Pacific | ||
| Myzostoma fissum (Graff, 1884) | Indo-Pacific | ||
| Myzostoma furcatum (Graff, 1887) | Indo-Pacific | ||
| Myzostoma gigas Lütken, | Northwest Pacific | ||
| Myzostoma glabrum (Leuckart, 1842) | Mediterranean Sea | ||
| Myzostoma horologium Graff, 1884 | Western Central Pacific | ||
| Myzostoma intermedium Graff, 1884 | Western Central Pacific | ||
| Myzostoma jaegersteni Eeckhaut, VandenSpiegel & Grygier, 1994 | Western Central Pacific | ||
| Myzostoma japonicum McClendon, 1906 | Northwest Pacific | 0.25 | |
| Myzostoma labiatum Graff, 1884 | Western Central Pacific | ||
| Myzostoma laingense Eeckhaut, Grygier & Deheyn, 1998 | Western Central Pacific | ||
| Myzostoma longicirrum Graff, 1887 | Indo-Pacific | ||
| Myzostoma longimanum (Jägersten, 1937) | Indo-West Pacific | ||
| Myzostoma lütkeni Graff, 1884 | Western Central Pacific | ||
| Myzostoma marginatum Graff, 1884 | Western Central Atlantic | ||
| Myzostoma metacrini McClendon, 1906 | Northwest Pacific | 0.6 | |
| Myzostoma mortenseni (Jägersten, 1940) | Western Central Pacific | ||
| Myzostoma murrayi Graff, 1883 | Southwest Pacific | ||
| Myzostoma nigrescens Graff, 1884 | Northwest Pacific | ||
| Myzostoma nigromaculatum (Eeckhaut, Grygier & Deheyn, 1998) | Western Central Pacific | ||
| Myzostoma pallidum Graff, | Western Central Pacific | ||
| Myzostoma pictum Graff, 1884 | Western Central Atlantic | ||
| Myzostoma plicatum Graff, 1884 | Indo-Pacific | ||
| Myzostoma polycyclus Atkins, 1927 | Indo-West Pacific | ||
| Myzostoma pottsi Atkins, 1927 | Western Central Pacific | ||
| Myzostoma pseudocuniculus Lanterbecq & Eeckhaut, 2003 | Western Indian Ocean | ||
| Myzostoma quadrifilum Graff, 1884 | Western Central Pacific | ||
| Myzostoma singaporense Eeckhaut, VandenSpiegel & Grygier, 1994 | Western Central Pacific | ||
| Myzostoma smithi McClendon, 1906 | Northwest Pacific | 0.35 | |
| Myzostoma stochoeides Atkins, 1927 | Western Central Pacific | ||
| Myzostoma toliarense Lanterbecq & Eeckhaut, 2003 | Western Indian Ocean | ||
| Myzostoma triste Graff, | Western Central Pacific | ||
| Myzostoma viride Atkins, 1927 | Western Central Pacific | ||
| Myzostoma wheeleri McClendon, 1906 | Northwest Pacific | ||
| Myzostoma willemoesii Graff, 1884 | Indo-Pacific |