| Species name | Common name | Distribution | Max. Length (cm) |
|---|---|---|---|
| Sphaerosyllis aciculata unspecified |
Western Central Atlantic | ||
| Sphaerosyllis acuiculata Perkins, 1981 |
Western Central Atlantic | ||
| Sphaerosyllis anoculata Hartmann-Schröder, 1980 |
Western Central Atlantic | ||
| Sphaerosyllis austriaca Banse, 1959 |
Mediterranean Sea | ||
| Sphaerosyllis bilobata Perkins, 1981 |
Western Central Atlantic | ||
| Sphaerosyllis boeroi Musco, Çinar & Giangrande, 2005 |
Mediterranean Sea | ||
| Sphaerosyllis brevidentata Perkins, 1981 |
Western Central Atlantic | ||
| Sphaerosyllis bulbosa Southern, 1914 |
Western Central Pacific, Mediterranean Sea and North Sea | ||
| Sphaerosyllis californiensis Hartman, 1966 |
Eastern Pacific | ||
| Sphaerosyllis capensis Day, 1953 |
Indo-West Pacific and the Mediterranean Sea | ||
| Sphaerosyllis centroamerica Hartmann-Schröder, 1959 |
Western Central Atlantic | ||
| Sphaerosyllis centroamericana Hartmann-schroeder, 1959 |
Eastern Pacific | ||
| Sphaerosyllis claparedei Ehlers, 1864 |
Western Central Pacific and the Mediterranean Sea | ||
| Sphaerosyllis glandulata Perkins, 1981 |
Western Central Atlantic and the Mediterranean Sea | ||
| Sphaerosyllis gravinae Somaschini & San Martín, 1994 |
Mediterranean Sea | ||
| Sphaerosyllis hirsuta unspecified |
Antarctic | ||
| Sphaerosyllis hystrix Claparède, 1863 |
Pacific Ocean, Atlantic Ocean, Mediterranean Sea, Black Sea and Western Indian Ocean | ||
| Sphaerosyllis kerguelensis (McIntosh, 1885) |
Antarctic Indian Ocean and Southwest Pacific | ||
| Sphaerosyllis longicauda Wbster & Benedict, 1887 |
Western Central Atlantic | ||
| Sphaerosyllis longilamina Russell, 1989 |
Western Central Atlantic | ||
| Sphaerosyllis magnidentata Perkins, 1981 |
Western Central Atlantic and Eastern Pacific | ||
| Sphaerosyllis minima Hartmann-Schröder, 1960 |
Western Indian Ocean | ||
| Sphaerosyllis ovigera Langerhans, 1879 |
Mediterranean Sea | ||
| Sphaerosyllis parvoculata Russell, 1989 |
Western Central Atlantic | ||
| Sphaerosyllis perkinsi Riser, 1991 |
Western Central Atlantic | ||
| Sphaerosyllis perspicax Ehlers, 1912 |
Antarctic Indian Ocean and Southeast Pacific | ||
| Sphaerosyllis pirifera Claparède, 1868 |
Indo-Pacific, Western Central Atlantic and the Mediterranean | ||
| Sphaerosyllis piriferopsis Perkins, 1981 |
Eastern Central Pacific, Western Central Atlantic and the Mediterranean Sea | ||
| Sphaerosyllis pumila Westheide, 1974 |
Eastern Pacific | ||
| Sphaerosyllis renaudae Hartmann-Schröder, 1958 |
Western Central Atlantic | ||
| Sphaerosyllis ridgiensis Blake & Hilbig, 1990 |
Northeast Pacific | ||
| Sphaerosyllis riseri Perkins, 1981 |
Western Central Atlantic | ||
| Sphaerosyllis taylori Perkins, 1981 |
Western Central Atlantic and the Mediterranean Sea |