n = 8
| Scientific Name | Author | Valid Name | Family | English Name |
|---|---|---|---|---|
| Ichthyococcus australis | Mukhacheva, 1980 | Ichthyococcus australis | Phosichthyidae | Southern lightfish |
| Ichthyococcus elongatus | Imai, 1941 | Ichthyococcus elongatus | Phosichthyidae | Slim lightfish |
| Ichthyococcus intermedius | Mukhacheva, 1980 | Ichthyococcus intermedius | Phosichthyidae | Intermediate lightfish |
| Ichthyococcus irregularis | Rechnitzer & Böhlke, 1958 | Ichthyococcus irregularis | Phosichthyidae | Bulldog lightfish |
| Ichthyococcus ovatus | (Cocco, 1838) | Ichthyococcus ovatus | Phosichthyidae | Lightfish |
| Ichthyococcus parini | Mukhacheva, 1980 | Ichthyococcus parini | Phosichthyidae | |
| Ichthyococcus polli | Blache, 1964 | Ichthyococcus polli | Phosichthyidae | |
| Ichthyococcus poweriae | (Cocco, 1838) | Vinciguerria poweriae | Phosichthyidae | Power's deep-water bristle-mouth fish |