n = 24
| Scientific Name | Author | Valid Name | Family | English Name |
|---|---|---|---|---|
| Icelus armatus | (Schmidt, 1916) | Icelus armatus | Cottidae | |
| Icelus bicornis | (Reinhardt, 1840) | Icelus bicornis | Cottidae | Twohorn sculpin |
| Icelus canaliculatus | Gilbert, 1896 | Icelus canaliculatus | Cottidae | Blacknose sculpin |
| Icelus cataphractus | (Pavlenko, 1910) | Icelus cataphractus | Cottidae | |
| Icelus ecornis | Tsutsui & Yabe, 1996 | Icelus ecornis | Cottidae | |
| Icelus euryops | Bean, 1890 | Icelus euryops | Cottidae | |
| Icelus gilberti | Taranetz, 1936 | Icelus gilberti | Cottidae | |
| Icelus mandibularis | Yabe, 1983 | Icelus mandibularis | Cottidae | |
| Icelus mororanis | (Jordan & Seale, 1906) | Genus Species | New species | |
| Icelus ochotensis | Schmidt, 1927 | Icelus ochotensis | Cottidae | |
| Icelus perminovi | Taranetz, 1936 | Icelus perminovi | Cottidae | Scaly-belly sculpin |
| Icelus rastrinoides | Taranetz, 1936 | Icelus rastrinoides | Cottidae | |
| Icelus scutiger | Bean, 1890 | Rastrinus scutiger | Cottidae | |
| Icelus sekii | Tsuruoka, Munehara & Yabe, 2006 | Icelus sekii | Cottidae | |
| Icelus spatula | Gilbert & Burke, 1912 | Icelus spatula | Cottidae | Spatulate sculpin |
| Icelus spatula spatula | Gilbert & Burke, 1912 | Icelus spatula | Cottidae | Spatulate sculpin |
| Icelus spiniger | Gilbert, 1896 | Icelus spiniger | Cottidae | Thorny sculpin |
| Icelus spiniger spiniger | Gilbert, 1896 | Icelus spiniger | Cottidae | Thorny sculpin |
| Icelus stenosomus | Andriashev, 1937 | Icelus stenosomus | Cottidae | |
| Icelus toyamensis | (Matsubara & Iwai, 1951) | Icelus toyamensis | Cottidae | |
| Icelus uncinalis | Gilbert & Burke, 1912 | Icelus uncinalis | Cottidae | |
| Icelus uncinalis stenosomus | Andriashev, 1937 | Icelus stenosomus | Cottidae | |
| Icelus uncinalis uncinalis | Gilbert & Burke, 1912 | Icelus uncinalis | Cottidae | |
| Icelus vicinalis | Gilbert, 1896 | Icelus euryops | Cottidae |