| Neomediomastus Hartman, 1969 |
| Neomediomastus glabrus (Hartman, 1960) |
| Neonotomastus Fauchald, 1972 |
| Neonotomastus glabrus Fauchald, 1972 |
| Neopseudocapitella Rullier & Amoureux, 1979 |
| Neopseudocapitella brasiliensis Rullier & Amoureux, 1979 |
| Notodasus Fauchald, 1972 |
| Notodasus dexterae Fauchald, 1973 |
| Notodasus harrisae García-Garza, Hernández-Valdez & de León-González, 2009 |
| Notodasus hartmanae García-Garza, Hernández-Valdez, & de León-González, 2009 |
| Notodasus kristiani García-Garza, Hernández-Valdez, & de León-González, 2009 |
| Notodasus magnus Fauchald, 1972 |
| Notomastus Sars, 1851 |
| Notomastus (Clistomastus) Eisig, 1887 |
| Notomastus (Clistomastus) hemipodus Hartman, 1945 |
| Notomastus (Clistomastus) lineatus Claparède, 1870 |
| Notomastus (Clistomastus) tenuis Moore, 1909 |
| Notomastus (Notomastus) Sars, 1851 |
| Notomastus (Notomastus) sonorae Kudenov, 1975 |
| Notomastus abyssalis Fauchald, 1972 |