n = 8
| Scientific Name | Author | Valid Name | Family | English Name |
|---|---|---|---|---|
| Mentodus bythios | (Matsui & Rosenblatt, 1987) | Mentodus bythios | Platytroctidae | |
| Mentodus crassus | Parr, 1960 | Mentodus crassus | Platytroctidae | |
| Mentodus eubranchus | (Matsui & Rosenblatt, 1987) | Mentodus eubranchus | Platytroctidae | |
| Mentodus facilis | (Parr, 1951) | Mentodus facilis | Platytroctidae | |
| Mentodus longirostris | (Sazonov & Golovan, 1976) | Mentodus longirostris | Platytroctidae | |
| Mentodus mesalirus | (Matsui & Rosenblatt, 1987) | Mentodus mesalirus | Platytroctidae | |
| Mentodus perforatus | Sazonov & Trunov, 1978 | Mentodus perforatus | Platytroctidae | |
| Mentodus rostratus | (Günther, 1878) | Mentodus rostratus | Platytroctidae |