1. Species Allostoma amoenum Karling, 1962
2. Species Allostoma catinosum (Beklemischev, 1927) Mack Fira, 1974
3. Species Allostoma crassicystiferum (Westblad, 1952)
4. Species Allostoma densissimabursa (Omi, 2020)
5. Species Allostoma durum (Fuhrmann, 1898)
6. Species Allostoma hopkinsi Karling, 1993
7. Species Allostoma neostiliferum Karling, 1993
8. Species Allostoma oerstedi (Levinsen, 1879) Graff, 1882
9. Species Allostoma pallidum Beneden, 1861
10. Species Allostoma uterinum (Westblad, 1952)
11. Species Allostoma album Levinsen, 1879 accepted as Allostoma pallidum Beneden, 1861 (junior synonym)
12. Species Allostoma austriacum (Graff, 1882) accepted as Allostoma durum (Fuhrmann, 1898) (nomen dubium)
13. Species Allostoma catinosa (Beklemischev, 1927) accepted as Allostoma catinosum (Beklemischev, 1927) Mack Fira, 1974 (Literature misspelling)
14. Species Allostoma evelinae (Marcus, 1948) accepted as Enterostomula evelinae Marcus, 1948
15. Species Allostoma fingalianum (Claperede, 1861) accepted as Cylindrostoma fingalianum (Claparède, 1861)
16. Species Allostoma graffi (de Beauchamp, 1913) accepted as Enterostomula graffi (de Beauchamp, 1913)
17. Species Allostoma monotrochum Graff, 1882 accepted as Cylindrostoma monotrochum (Graff, 1882) Westblad, 1955
18. Species Allostoma oerstedii accepted as Allostoma oerstedi (Levinsen, 1879) Graff, 1882 (unaccepted > misspelling - incorrect subsequent spelling)
19. Species Allostoma calyx Graff, 1911 (uncertain > nomen dubium, nomen dubium)
20. Species Allostoma capitatum Uljanin, 1870 (uncertain > nomen dubium, nomen dubium)
21. Species Allostoma discors (Levinsen, 1879) Graff, 1882 (uncertain > nomen dubium)
22. Species Allostoma flavibacillum Jensen, 1878 (uncertain > nomen dubium, nomen dubium)
23. Species Allostoma monophthalmum Steinböck, 1933 (uncertain > nomen dubium, nomen dubium)

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