| Species name | Common name | Distribution | Max. Length (cm) | 
|---|---|---|---|
| Ilyarachna acarina Menzies & Barnard, 1959 | California, USA | ||
| Ilyarachna affinis Barnard, 1920 | South Africa | ||
| Ilyarachna antarctica Vanhöffen, 1914 | Pacific and the Antarctic | 0.39 | |
| Ilyarachna armata Thistle, 1980 | S | ||
| Ilyarachna bergendahli Ohlin, 1901 | Greenland | ||
| Ilyarachna calva Pasternak, 1982 | Mediterranean | ||
| Ilyarachna clypeata (Sars, 1870) | N | ||
| Ilyarachna crassiceps Barnard, 1920 | South Africa | ||
| Ilyarachna crozetensis Kensley, 1980 | Antarctic Indian Ocean | ||
| Ilyarachna defecta Menzies & George, 1972 | Peru-Chile Trench | ||
| Ilyarachna derjugini Gurjanova, 1946 | Arctic Ocean | ||
| Ilyarachna frami Just, 1980 | Arctic | ||
| Ilyarachna hirticeps Sars, 1870 | Northeast Atlantic and the Arctic | ||
| Ilyarachna kermadecensis Wolff, 1962 | Southwest Pacific | ||
| Ilyarachna kurilensis Kussakin & Mezhov, 1979 | Kuril Is | ||
| Ilyarachna kussakini Birstein, 1963 | N | ||
| Ilyarachna longicornis (Sars, 1864) | Northeast Atlantic and the Arctic | ||
| Ilyarachna longipes Birstein, 1963 | N | ||
| Ilyarachna mediorientalis Chardy, 1974 | Mediterranean Sea | ||
| Ilyarachna nodifronoides Menzies, 1962 | S | ||
| Ilyarachna nordenstami Wolff, 1962 | Antarctic Atlantic | ||
| Ilyarachna pervica Menzies & George, 1972 | Peru-Chile Trench | ||
| Ilyarachna plana Thistle, 1980 | Brazil | ||
| Ilyarachna polita Bonnier, 1896 | Northeast Atlantic | ||
| Ilyarachna profunda Schultz, 1966 | La Jolla Canyon | ||
| Ilyarachna propinqua Birstein, 1971 | N | ||
| Ilyarachna quadrispinosa Beddard, 1886 | Antarctic Indian Ocean | ||
| Ilyarachna scabra Birstein, 1971 | N | ||
| Ilyarachna scotia Menzies, 1962 | S | ||
| Ilyarachna spinosissima Hansen, 1916 | Davis Strait | ||
| Ilyarachna torleivi Svavarsson, 1988 | Northern Sea | ||
| Ilyarachna triangulata Menzies, 1962 | S | ||
| Ilyarachna tuberculata Birstein, 1971 | N | ||
| Ilyarachna una Thistle, 1980 | N | ||
| Ilyarachna vemae Menzies & George, 1972 | Peru-Chile Trench | ||
| Ilyarachna venusta Birstein, 1971 | N | ||
| Ilyarachna wolffi Kensley, 1978 | South Africa | ||
| Ilyarachna zachsi Gurjanova, 1933 | Sea of Japan |