Genus Sphaerosyllis Claparède, 1863
Sphaerosyllis austriaca Banse, 1959
DISTRIBUTION: SA.
LITERATURE RECORDS: Musco et al. 2004; Castelli et al. 2008.
Sphaerosyllis boeroi Musco, Çinar & Giangrande, 2005 DISTRIBUTION: SA.
LITERATURE RECORDS: Musco 2012.
Sphaerosyllis bulbosa Southern, 1914
DISTRIBUTION: NA, SA.
LITERATURE RECORDS: Kiseleva 1964; Musco et al. 2004; Simonini et al. 2007; Casellato et al. 2007; Casellato & Stefanon 2008; Castelli et al. 2008.
* Sphaerosyllis claparedii Ehlers, 1864
DISTRIBUTION: NA.
LITERATURE RECORDS: Ehlers 1864; Carus 1884; Cognetti 1958; Banse 1959; Katzmann 1972; Amoureux 1983c; Požar-Domac 1994; Castelli et al. 2008.
OTHER REPORTED NAMES: Sphaerosyllis claparedii Ehlers, 1864; Sphaerosyllis claparedi Ehlers, 1864 .
Sphaerosyllis glandulata Perkins, 1981
DISTRIBUTION: NA, SA.
LITERATURE RECORDS: Fraschetti et al. 2002; Musco et al. 2004; Castelli et al. 2008. NEW RECORDS: BM19, BM22.
DEPOSITED MATERIAL: BM22, 30.09.2010., 1 spec. (PMR-17632).
Sphaerosyllis gravinae Somaschini & San Martín, 1994 DISTRIBUTION: SA.
LITERATURE RECORDS: Giangrande et al. 2001; Musco et al. 2004; Castelli et al. 2008.
Sphaerosyllis hystrix Claparède, 1863
DISTRIBUTION: NA, CA, SA.
LITERATURE RECORDS: Stossich 1876, 1883; Carus 1884; Cognetti 1958; Banse 1959, 1970; Katzmann 1971, 1972, 1973a; Velimirov & Sint 1975; Amoureux 1983c; Katzmann 1983; Fassari 1983; Požar-Domac 1986, 1994; Fraschetti et al. 2002; Giangrande et al. 2003, 2004; Musco et al. 2004; Castelli et al. 2008; Mikac & Musco 2010; Musco 2012.
NEW RECORDS: BM11, BM13, BM18, BM19, BM20, BM28, BM52, BM53, BM78, BM99.
Sphaerosyllis ovigera Langerhans, 1879
DISTRIBUTION: NA, SA.
LITERATURE RECORDS: Zavodnik 1965, 1967b; Požar-Domac 1994; Casellato & Stefanon 2008.
Sphaerosyllis pirifera Claparède, 1868
DISTRIBUTION: NA, SA.
LITERATURE RECORDS: Fraschetti et al. 2002; Giangrande et al. 2003, 2004; Musco et al. 2004; Castelli et al. 2008; Mikac & Musco 2010; Musco 2012.
NEW RECORDS: BM19, BM68, BM74.
Sphaerosyllis taylori Perkins, 1981
DISTRIBUTION: NA, CA, SA.
LITERATURE RECORDS: Giangrande et al. 2003, 2004; Musco et al. 2004; Castelli et al. 2008; Musco 2012. NEW RECORDS: BM18, BM19, BM20, BM99.
Sphaerosyllis thomasi San Martín, 1984
DISTRIBUTION: SA.
LITERATURE RECORDS: Musco et al. 2004; Castelli et al. 2008.