1. Subgenus Kellya (Bornia) R. A. Philippi, 1836 accepted as Bornia R. A. Philippi, 1836 (unaccepted > superseded rank)
   1. Species Kellya (Bornia) sebetia (O. G. Costa, 1830) accepted as Bornia sebetia (O. G. Costa, 1830)
2. Subgenus Kellya (Divarikellya) Cossmann, 1896 † accepted as Kellia (Divarikellia) Cossmann, 1887 † accepted as Divarikellia Cossmann, 1887 † (unjustified emendation)
   1. Species Kellya (Divarikellya) sacyi Cossmann & Peyrot, 1912 † accepted as Divarikellia sacyi (Cossmann & Peyrot, 1912) † (basionym)
   2. Species Kellya (Divarikellya) sebetia (O. G. Costa, 1830) accepted as Bornia sebetia (O. G. Costa, 1830) (unaccepted > superseded combination)
3. Subgenus Kellya (Kellya) R. A. Philippi, 1853 accepted as Kellia W. Turton, 1822 (unaccepted > superseded rank)
4. Species Kellya delmasi E. Lamy, 1927 accepted as Lionelita nuculoides (Hanley, 1857)
5. Species Kellya elongata Lynge, 1909 accepted as Scintillula elongata (Lynge, 1909)
6. Species Kellya houdasi Cossmann, 1896 † accepted as Divarikellia houdasi (Cossmann, 1896) † (unaccepted > superseded combination)
7. Species Kellya infraeocaenica Cossmann, 1902 † accepted as Bornia infraeocaenica (Cossmann, 1902) † (unaccepted > superseded combination)
8. Species Kellya joncheriacensis Staadt, 1913 † accepted as Bornia joncheriacensis (Staadt, 1913) † (unaccepted > superseded combination)
9. Species Kellya rosea Lynge, 1909 accepted as Kellia rosea (Lynge, 1909)
10. Species Kellya rubra (Montagu, 1803) accepted as Lasaea rubra (Montagu, 1803)
11. Species Kellya chilkaensis Preston, 1915 (uncertain > taxon inquirendum)
12. Species Kellya coquimbana R. A. Philippi, 1887 † (uncertain > unassessed)
13. Species Kellya filiola Cossmann, 1896 † (uncertain > unassessed)
14. Species Kellya lilium Lynge, 1909 (uncertain > taxon inquirendum)
15. Species Kellya lineata Lynge, 1909 (uncertain > taxon inquirendum)
16. Species Kellya mahosaensis Preston, 1915 (uncertain > unassessed, use in recent literature not established by editor)
17. Species Kellya megalodon R. A. Philippi, 1887 † (uncertain > unassessed)
18. Species Kellya merignacensis Cossmann, 1896 † (uncertain > unassessed)
19. Species Kellya miocaenica Cossmann, 1896 † (uncertain > unassessed)
20. Species Kellya vitrina Lynge, 1909 (uncertain > taxon inquirendum)

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