1. Species Syndosmya alba (W. Wood, 1802) accepted as Abra alba (W. Wood, 1802)
2. Species Syndosmya apelina Récluz, 1843 accepted as Abra alba (W. Wood, 1802)
3. Species Syndosmya bosqueti O. Semper, 1861 † accepted as Abra bosqueti (O. Semper, 1861) † (unaccepted > superseded combination)
4. Species Syndosmya cailliaudi P. Fischer, 1867 accepted as Abra segmentum (Récluz, 1843) (unaccepted > unavailable name, established in synonymy)
5. Species Syndosmya deltoidea Deshayes, 1857 † accepted as Abra deltoidea (Deshayes, 1857) † (unaccepted > superseded combination)
6. Species Syndosmya depressa Deshayes, 1857 † accepted as Abra depressa (Deshayes, 1857) † (unaccepted > superseded combination)
7. Species Syndosmya deshayesi Bosquet, 1864 † accepted as Abra deshayesi (Bosquet, 1864) † (unaccepted > superseded combination)
8. Species Syndosmya difficilis Deshayes, 1857 † accepted as Abra difficilis (Deshayes, 1857) † (unaccepted > superseded combination)
9. Species Syndosmya exilis Deshayes, 1857 † accepted as Abra exilis (Deshayes, 1857) † (unaccepted > superseded combination)
10. Species Syndosmya lamberti Deshayes, 1857 † accepted as Abra lamberti (Deshayes, 1857) † (unaccepted > superseded combination)
11. Species Syndosmya lioica Dall, 1881 accepted as Abra lioica (Dall, 1881) (original combination)
12. Species Syndosmya longicallis (R. A. Philippi, 1844) accepted as Abra longicallus (Scacchi, 1835) (unaccepted > superseded combination, and unjustified emendation of species name)
13. Species Syndosmya macrodonta Deshayes, 1857 † accepted as Abra macrodonta (Deshayes, 1857) † (unaccepted > superseded combination)
14. Species Syndosmya media Deshayes, 1857 † accepted as Abra media (Deshayes, 1857) † (unaccepted > superseded combination)
15. Species Syndosmya obtusa Deshayes, 1857 † accepted as Abra obtusa (Deshayes, 1857) † (unaccepted > superseded combination)
16. Species Syndosmya occitanica Récluz, 1844 accepted as Abra alba (W. Wood, 1802)
17. Species Syndosmya philippinana Récluz, 1845 accepted as Abra nitida (O. F. Müller, 1776) (junior subjective synonym)
18. Species Syndosmya radiata Lovén, 1846 accepted as Abra tenuis (Montagu, 1803)
19. Species Syndosmya recluzii Deshayes, 1857 † accepted as Abra recluzii (Deshayes, 1857) † (unaccepted > superseded combination)
20. Species Syndosmya segmentum Récluz, 1843 accepted as Abra segmentum (Récluz, 1843)
21. Species Syndosmya striatula Deshayes, 1857 † accepted as Abra striatula (Deshayes, 1857) † (unaccepted > superseded combination)
22. Species Syndosmya strigilloides Vaillant, 1865 accepted as Iacra seychellarum (A. Adams, 1856)
23. Species Syndosmya subrostrata Issel, 1869 accepted as Leptomya rostrata (H. Adams, 1868)
24. Species Syndosmya suessoniensis Deshayes, 1857 † accepted as Abra suessoniensis (Deshayes, 1857) † (unaccepted > superseded combination)
25. Species Syndosmya tellinella G. Seguenza, 1876 accepted as Abra longicallus (Scacchi, 1835)
26. Species Syndosmya truncata Récluz, 1843 accepted as Scrobicularia plana (da Costa, 1778)
27. Species Syndosmya rolandae Mayer, 1864 † (uncertain > unassessed)
28. Species Syndosmya sarmatica T. Fuchs, 1873 † (uncertain > unassessed)
29. Species Syndosmya schneideri O. Boettger, 1892 (uncertain > taxon inquirendum)
30. Species Syndosmya subelegans Dufour, 1881 † (uncertain > unassessed)

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