1. Subgenus Caecilioides (Karolus) de Folin, 1870 accepted as Karolus de Folin, 1870 (unaccepted combination)
   1. Species Caecilioides (Karolus) consobrina (A. d'Orbigny, 1841) accepted as Karolus consobrinus (A. d'Orbigny, 1841) (unaccepted combination)
2. Species Caecilioides acicula (O. F. Müller, 1774) accepted as Cecilioides acicula (O. F. Müller, 1774) (unaccepted > unjustified emendation)
3. Species Caecilioides bensoni Gude, 1914 accepted as Cecilioides bensoni Gude, 1914 (original combination)
4. Species Caecilioides caprai Bacci, 1943 accepted as Cecilioides caprai Bacci, 1943 (original combination)
5. Species Caecilioides consobrina (A. d'Orbigny, 1841) accepted as Karolus consobrinus (A. d'Orbigny, 1841) (unaccepted combination)
6. Species Caecilioides domingensis Vanatta, 1920 accepted as Cecilioides domingensis Vanatta, 1920 (original combination; misspelling of original genus)
7. Species Caecilioides gundlachi (L. Pfeiffer, 1850) accepted as Geostilbia aperta (Swainson, 1840) (unaccepted combination)
8. Species Caecilioides iota (C. B. Adams, 1845) accepted as Cecilioides iota (C. B. Adams, 1845) accepted as Karolus iota (C. B. Adams, 1845)
9. Species Caecilioides isseli (Paladilhe, 1872) accepted as Cecilioides isseli (Paladilhe, 1872)
10. Species Caecilioides mauritiana (H. Adams, 1868) accepted as Cecilioides mauritiana (H. Adams, 1868)
11. Species Caecilioides minutissima (Guppy, 1868) accepted as Karolus consobrinus (A. d'Orbigny, 1841) (junior synonym)
12. Species Caecilioides ovampoensis (Melvill & Ponsonby, 1892) accepted as Cecilioides advena (Ancey, 1888) (junior synonym)
13. Species Caecilioides soleilleti (Bourguignat, 1885) accepted as Cecilioides soleilleti (Bourguignat, 1885)
14. Species Caecilioides spelaea A. J. Wagner, 1914 accepted as Cecilioides veneta (Strobel, 1855) (unaccepted > junior subjective synonym)
15. Species Caecilioides kervillei Germain, 1911 (uncertain > taxon inquirendum)

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