1. Species Loxosoma agile Nielsen, 1964
2. Species Loxosoma annelidicola (Van Beneden & Hesse, 1863)
3. Species Loxosoma axisadversum Konno, 1972
4. Species Loxosoma claparedei Bobin & Prenant, 1953
5. Species Loxosoma cubitus Konno, 1974
6. Species Loxosoma davenporti Nickerson, 1898
7. Species Loxosoma discoides Roldán, Villalba & Viéitez, 2019
8. Species Loxosoma fishelsoni Bobin, 1970
9. Species Loxosoma isolata Salvini-Plawen, 1968
10. Species Loxosoma jaegersteni Nielsen, 1966
11. Species Loxosoma loricatum Harmer, 1915
12. Species Loxosoma loxalina Assheton, 1912
13. Species Loxosoma monensis Eggleston, 1965
14. Species Loxosoma monilis Konno, 1973
15. Species Loxosoma nielseni Prpic, 2001
16. Species Loxosoma nung Nielsen, 1996
17. Species Loxosoma okudai Yamada, 1956
18. Species Loxosoma pectinaricola Franzén, 1962
19. Species Loxosoma poculi (Konno, 1977)
20. Species Loxosoma rhodinicola Franzén, 1962
21. Species Loxosoma saltans Assheton, 1912
22. Species Loxosoma sam Nielsen, 1996
23. Species Loxosoma significans Nielsen, 1964
24. Species Loxosoma singulare Keferstein, 1862
25. Species Loxosoma song Nielsen, 1996
26. Species Loxosoma spathula Nielsen, 1966
27. Species Loxosoma tetracheir (Nielsen, 1966)
28. Species Loxosoma vatilli Konno, 1977
29. Species Loxosoma akkeshiense Yamada, 1956 accepted as Loxosomella akkeshiensis (Yamada, 1956) (basionym)
30. Species Loxosoma alata Barrois, 1877 accepted as Loxosomella alata (Barrois, 1877) (basionym)
31. Species Loxosoma annulata Harmer, 1915 accepted as Loxosomella annulata (Harmer, 1915) accepted as Loxomitra annulata (Harmer, 1915) (basionym)
32. Species Loxosoma brumpti Nilus, 1909 accepted as Loxosomella brumpti (Nilus, 1909) (basionym)
33. Species Loxosoma circularis Harmer, 1915 accepted as Loxosomella circularis (Harmer, 1915) (basionym)
34. Species Loxosoma cirrifera Harmer, 1915 accepted as Loxosomella cirrifera (Harmer, 1915) (basionym)
35. Species Loxosoma claviformis Hincks, 1880 accepted as Loxosomella claviformis (Hincks, 1880) (basionym)
36. Species Loxosoma cochlear Schmidt, 1876 accepted as Loxosomella cochlear (Schmidt, 1876) (basionym)
37. Species Loxosoma constricta O'Donoghue, 1924 accepted as Loxosomella constricta (O'Donoghue, 1924) (basionym)
38. Species Loxosoma crassicauda Salensky, 1877 accepted as Loxosomella crassicauda (Salensky, 1877) (basionym)
39. Species Loxosoma harmeri Schultz, 1895 accepted as Loxosomella harmeri (Schultz, 1895) (basionym)
40. Species Loxosoma kefersteini Claparède, 1867 accepted as Loxosomella kefersteinii (Claparède, 1867) accepted as Loxomitra kefersteinii (Claparède, 1867) (basionym)
41. Species Loxosoma leptoclini Harmer, 1885 accepted as Loxosomella leptoclini (Harmer, 1885) (basionym)
42. Species Loxosoma lineata Harmer, 1915 accepted as Loxosomella lineata (Harmer, 1915) (basionym)
43. Species Loxosoma minuta Osburn, 1912 accepted as Loxosomella minuta (Osburn, 1912)
44. Species Loxosoma murmanica Nilus, 1909 accepted as Loxosomella murmanica (Nilus, 1909) (basionym)
45. Species Loxosoma neapolitanum Kowalewsky, 1866 accepted as Loxosomella neapolitana (Kowalewsky, 1866) (basionym)
46. Species Loxosoma nitschei Vigelius, 1882 accepted as Loxosomella nitschei (Vigelius, 1882) (basionym)
47. Species Loxosoma obesum Atkins, 1932 accepted as Loxosomella obesa (Atkins, 1932)
48. Species Loxosoma pes Schmidt, 1878 accepted as Loxosomella pes (Schmidt, 1878) (basionym)
49. Species Loxosoma phascolosomata Vogt, 1876 accepted as Loxosomella phascolosomata (Vogt, 1876) (basionym)
50. Species Loxosoma pusilla Harmer, 1915 accepted as Loxosomella pusilla (Harmer, 1915) (basionym)
51. Species Loxosoma raja Schmidt, 1875 accepted as Loxosomella raja (Schmidt, 1875) (basionym)
52. Species Loxosoma shizugawaense Toriumi, 1949 accepted as Loxosomella shizugawaensis (Toriumi, 1949) (basionym)
53. Species Loxosoma studiosorum Toriumi, 1951 accepted as Loxosomella studiosorum (Toriumi, 1951) (basionym)
54. Species Loxosoma tethyae Salensky, 1877 accepted as Loxosomella tethyae (Salensky, 1877) (basionym)
55. Species Loxosoma velata Harmer, 1885 accepted as Loxosomella velata (Harmer, 1885) (basionym)

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