| Species | Name Used in Reference |
|---|---|
| Cottiusculus gonez Jordan & Starks, 1904 | Cottiusculus gonez (p. 222;fig.8-9;tab.1-2 ) |
| Cottiusculus nihonkaiensis Kai & Nakabo, 2009 | Cottiusculus nihonkaiensis (p. 215;fig.1-2;tab.1-2 ) |
| Cottiusculus schmidti Jordan & Starks, 1904 | Cottiusculus schmidti (p. 220;fig.6-7;tab.1-2 ) |