1. Subgenus Protocythere (Kempercythere) Gründel, 1978 †
   1. Species Protocythere (Kempercythere) nodigera (Triebel, 1941) Gruendel, 1978 †
2. Subgenus Protocythere (Protocythere) Triebel, 1938 †
   1. Species Protocythere (Protocythere) cancellata Grosdidier, 1964 † accepted as  † (new combination)
   2. Species Protocythere (Protocythere) croutesensis Damotte & Grosdidier, 1963 † accepted as  † (new combination)
   3. Species Protocythere (Protocythere) derooi Oertli, 1958 † accepted as  † (new combination)
   4. Species Protocythere (Protocythere) hechti Triebel, 1938 † accepted as  † (new combination)
   5. Species Protocythere (Protocythere) pumila Grosdidier, 1964 † accepted as  † (new combination)
   6. Species Protocythere (Protocythere) lineata (Chapman & Sherborn, 1893) Howe & Laurencich, 1958 † represented as  †
3. Subgenus Protocythere (Valendocythere) Gründel, 1969 †
4. Species Protocythere albae Damotte & Grosdidier, 1963 †
5. Species Protocythere iriebeli Deroo, 1957 †
6. Species Protocythere jonesi Triebel, 1938 †
7. Species Protocythere quadricarinata Swain & Peterson, 1952 †
8. Species Protocythere siddiquii Weaver, 1982 †
9. Species Protocythere tazemmourtensis Andreu-Boussut, 1991 †
10. Subgenus Protocythere (Costacythere) Gründel, 1966 † accepted as Costacythere Gründel, 1966 † (Subgenus raised to genus level)
11. Subgenus Protocythere (Mandocythere) Gründel, 1964 † accepted as Mandocythere Gründel, 1964 † (taxon accepted at genus level)
12. Species Protocythere aptensis Oertli, 1958 † accepted as  † (new combination)
13. Species Protocythere bireticulata Malz, 1958 † accepted as  † (new combination)
14. Species Protocythere cancellata Grosdidier, 1964 † accepted as  † (new combination)
15. Species Protocythere croutesensis Damotte & Grosdidier, 1963 † accepted as  † (new combination)
16. Species Protocythere derooi Oertli, 1958 † accepted as  † (new combination)
17. Species Protocythere fusca Bielecka, Blaszyk & Styk, 1976 † accepted as Hechticythere (Reticythere) fusca (Bielecka, Blaszyk & Styk, 1976) Gruendel, 1978 † (superseded original combination)
18. Species Protocythere granifera Grosdidier, 1964 † accepted as  † (new combination)
19. Species Protocythere hayi Hornibrook, 1953 † accepted as Protobuntonia hayi (Hornibrook, 1953) Ayress, 1993 † (superseded original combination)
20. Species Protocythere hechti Triebel, 1938 † accepted as  † (new combination)
21. Species Protocythere lapparenti Damotte & Grosdidier, 1963 † accepted as  † (new combination)
22. Species Protocythere paratriplicata Swain, 1952 † accepted as  † (new combination)
23. Species Protocythere pumila Grosdidier, 1964 † accepted as  † (new combination)
24. Species Protocythere sigmoidea Steghaus, 1951 † accepted as  † (new combination)
25. Species Protocythere strigosa Grosdidier, 1964 † accepted as  † (new combination)
26. Species Protocythere tricostata Triebel, 1938 † accepted as  † (new combination)
27. Species Protocythere frankei Triebel, 1938 † represented as  † (new combination)
28. Species Protocythere nodigera Triebel, 1941 † represented as Protocythere (Kempercythere) nodigera (Triebel, 1941) Gruendel, 1978 †

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