1. Species Promesostoma alaskanum Ax & Armonies, 1990
2. Species Promesostoma baculum Diez, Reygel & Artois, 2023
3. Species Promesostoma balticum Luther, 1918
4. Species Promesostoma bilineatum Pereyaslawzewa, 1892
5. Species Promesostoma bipartitum Ax, 1956
6. Species Promesostoma caligulatum Ax, 1952
7. Species Promesostoma cochleare Karling, 1935
8. Species Promesostoma convolutum Armonies, 2020
9. Species Promesostoma cubanum Diez, Reygel & Artois, 2023
10. Species Promesostoma cubitum Artois & Diez, 2023
11. Species Promesostoma dennisalleni Ax, 1995
12. Species Promesostoma digitosum Ax, 1995
13. Species Promesostoma dipterostylum Karling, 1967
14. Species Promesostoma ellipticum (Uljanin, 1870) Graff, 1882
15. Species Promesostoma ensifer (Uljanin, 1870) Pereyaslawzewa, 1892
16. Species Promesostoma fibulatum Ax & Armonies, 1987
17. Species Promesostoma furcatum Armonies, 2023
18. Species Promesostoma gallicum Ax, 1956
19. Species Promesostoma gracile Ax, 1951
20. Species Promesostoma hymanae Ax, 1968
21. Species Promesostoma infundibulum Ax, 1968
22. Species Promesostoma karlingi Ehlers, 1974
23. Species Promesostoma kergroixense Ehlers & Sopott-Ehlers, 1989
24. Species Promesostoma kristenseni Ax, 1993
25. Species Promesostoma maculosum Ax, 1956
26. Species Promesostoma marmoratum (Schultze, 1851) Graff, 1882
27. Species Promesostoma meixneri Ax, 1951
28. Species Promesostoma minutum Ax, 1956
29. Species Promesostoma neglectum Karling, 1967
30. Species Promesostoma norvegicum Karling, 1967
31. Species Promesostoma nynaesiense Karling, 1957
32. Species Promesostoma panamaense Artois & Diez, 2023
33. Species Promesostoma paracochleare Ax, 1952
34. Species Promesostoma roseapharynx Diez, Reygel & Artois, 2023
35. Species Promesostoma rostratum Ax, 1951
36. Species Promesostoma sartagine Ax & Ehlers, 1973
37. Species Promesostoma scylax Marcus, 1952
38. Species Promesostoma serpentistylum Ax, 1952
39. Species Promesostoma spiriferum Karling, 1967
40. Species Promesostoma tenebrosum Ax & Ehlers, 1973
41. Species Promesostoma teshirogii Ax, 1992
42. Species Promesostoma toryne Artois & Diez, 2023
43. Species Promesostoma wehrenbergi Armonies, 2018
44. Species Promesostoma agile (Levinsen, 1879) Graff, 1882 accepted as Maehrenthalia agilis (Levinsen, 1879) Graff, 1905
45. Species Promesostoma biliniata Pereyeslawzewa, 1892 accepted as Promesostoma biliniatum Pereyaslawzewa, 1892 accepted as Promesostoma bilineatum Pereyaslawzewa, 1892 (Adjusted to gender of genus (according to ICZN Art.31.2.), following ICZN Art.34.2.)
46. Species Promesostoma biliniatum Pereyaslawzewa, 1892 accepted as Promesostoma bilineatum Pereyaslawzewa, 1892 (See nomenclatural note)
47. Species Promesostoma cochlearis Karling, 1935 accepted as Promesostoma cochleare Karling, 1935 (Wrong gender of epithet. Promesostoma is neuter. Therefore, following Art 31.2 and 34.2 of ICZN the gender shoud be adjusted.)
48. Species Promesostoma digitosa Ax, 1995 accepted as Promesostoma digitosum Ax, 1995 (Adjusted to gender of genus (according to ICZN Art.31.2.), following ICZN Art.34.2.)
49. Species Promesostoma elegantulum (Uljanin, 1870) Graff, 1882 accepted as Tamara elegantula Uljanin, 1870 (Graff (1882: p. 274)) transfers it to Promesostoma with hesitation, in 1913 (p. 201) he re-introduced Tamara, but as taxon inquirendum.)
50. Species Promesostoma elongatulum accepted as Promesostoma elegantulum (Uljanin, 1870) Graff, 1882 accepted as Tamara elegantula Uljanin, 1870 (Graff spelled the epithet wrong, in the synonyms list as well as in the entry of the species in Promesostoma. The correct epithet is elegantulum, as it was in the orginal descrition by Uljanin.)
51. Species Promesostoma ericae Faubel, 1980 accepted as Promesostoma caligulatum Ax, 1952
52. Species Promesostoma lenticulatum (Schmidt, 1852) Graff, 1882 accepted as Beauchampiella lenticulata (Schmidt, 1852) Karling, 1956 accepted as Beauchampiola lenticulata (Schmidt, 1852) Luther, 1957
53. Species Promesostoma minima Pereyaslawzewa, 1892 accepted as Promesostoma minimum Pereyaslawzewa, 1892 (Gender of epithet incorrect)
54. Species Promesostoma murmanicum Graff, 1905 accepted as Vejdovskya murmanica (Graff, 1905) Luther, 1948 accepted as Pogaina murmanica (Graff, 1905) Marcus, 1954
55. Species Promesostoma pachidermum Pereyaslawzewa, 1892 accepted as Paramesostoma pachidermum (Pereyaslawzewa, 1892) Ax, 1959 accepted as Paramesostoma neapolitanum (Graff, 1882) Attems, 1896
56. Species Promesostoma hamatum Beklemischev, 1953 (uncertain, Incertae sedis)
57. Species Promesostoma minimum Pereyaslawzewa, 1892 (uncertain > nomen dubium)
58. Species Promesostoma ovoideum (Schmidt, 1852) Graff, 1882 (uncertain > taxon inquirendum)
59. Species Promesostoma pedicellatum Pereyaslawzewa, 1892 (uncertain > nomen dubium)
60. Species Promesostoma solea (Schmidt, 1857) Graff, 1882 (uncertain > taxon inquirendum)
61. Species Promesostoma spirale Beklemischev, 1953 (uncertain, Incertae sedis)

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