| Species name | Common name | Distribution | Max. Length (cm) |
|---|---|---|---|
| Mediomastus ambiseta unspecified |
Western Atlantic | ||
| Mediomastus branchiferus Hartmann-Schröder, 1962 |
Southeast Pacific | ||
| Mediomastus californiensis Hartman, 1944 |
Pacific Ocean and Western Central Atlantic | ||
| Mediomastus capensis unspecified |
Northeast Atlantic and the Mediterranean | ||
| Mediomastus caudatus Hartman, 1974 |
Western Indian Ocean | ||
| Mediomastus cirripes Ben-Eliahu, 1976 |
Western Central Atlantic and the Mediterranean Sea | ||
| Mediomastus fragilis Rasmussen, 1973 |
Atlantic Ocean, Mediterranean and Western Indian Ocean | ||
| Mediomastus setosus Hartmann-Schröder, 1959 |
Eastern Pacific | ||
| Mediomastus thomassini Warren, Hutchings & Doyle, 1994 |
Western Indian Ocean | ||
| Mediomastus warrenae Green, 2002 |
Western Central Pacific |