| Species | Name Used in Reference |
|---|---|
| Hymenocephalus fuscus McMillan & Iwamoto, 2014 | Hymenocephalus fuscus (p. 118;fig.1-3;tab.1 ) |
| Hymenocephalus maculicaudus McMillan & Iwamoto, 2014 | Hymenocephalus maculicaudus (p. 122;fig,4-7;tab.2 ) |
| Hymenocephalus nascens Gilbert & Hubbs, 1920 | Hymenocephalus nascens (p. 127;fig.3,8 ) |
| Hymenogadus gracilis (Gilbert & Hubbs, 1920) | Hymenogadus gracilis (p. 129;fig.3,9-10;tab.4 ) |
| Hymenogadus tenuis (Gilbert & Hubbs, 1917) | Hymenogadus tenuis (p. 132 ) |