1. Species Janira affinis Tuomey & F. S. Holmes, 1855 † accepted as Euvola holmesii (Dall, 1898) † (unaccepted > junior homonym, junior homonym of Pecten affinis Risso, 1826; Pecten (Euvola) holmesii is a replacement name)
2. Species Janira albensis A. d'Orbigny, 1850 † accepted as Neithea sexcostata (S. Woodward, 1833) † (unaccepted > junior subjective synonym, tentative junior subjective synonym)
3. Species Janira alpina A. d'Orbigny, 1847 † accepted as Neithea alpina (A. d'Orbigny, 1847) † (unaccepted > superseded combination)
4. Species Janira bella Conrad, 1856 † accepted as Euvola bella (Conrad, 1856) † (unaccepted > superseded combination)
5. Species Janira calabra G. Seguenza, 1880 † accepted as Oppenheimopecten revolutus (Michelotti, 1847) † (unaccepted > junior subjective synonym)
6. Species Janira carantonensis A. d'Orbigny, 1850 † accepted as Neithea sexcostata (S. Woodward, 1833) † (unaccepted > junior subjective synonym)
7. Species Janira cometa A. d'Orbigny, 1847 † accepted as Neithella notabilis (Münster, 1833) † (unaccepted > junior subjective synonym)
8. Species Janira coquandi Péron, 1877 † accepted as Neithea coquandi (Péron, 1877) † (unaccepted > superseded combination)
9. Species Janira daghestanica Rengarten, 1909 † accepted as Neithea syriaca (Conrad, 1852) † (unaccepted > junior subjective synonym)
10. Species Janira decemcostata A. d'Orbigny, 1847 † accepted as Neithea decemcostata (A. d'Orbigny, 1847) † (unaccepted > superseded combination)
11. Species Janira deperdita Michelotti, 1861 † accepted as Gigantopecten arcuatus (Brocchi, 1814) † (unaccepted > junior subjective synonym)
12. Species Janira deshayesiana [sic] † accepted as Neithea deshayana (Matheron, 1843) † (unaccepted > misspelling)
13. Species Janira digitalis (F. A. Roemer, 1841) † accepted as Neithella notabilis (Münster, 1833) † (unaccepted > junior subjective synonym)
14. Species Janira dilatata A. d'Orbigny, 1847 † accepted as Neithea dilatata (A. d'Orbigny, 1847) † (unaccepted > superseded combination)
15. Species Janira doumerci Péron, 1877 † accepted as Neithea alpina (A. d'Orbigny, 1847) † (unaccepted > junior subjective synonym)
16. Species Janira dutemplei A. d'Orbigny, 1847 † accepted as Neithea sexcostata (S. Woodward, 1833) † (unaccepted > junior subjective synonym)
17. Species Janira dutrugei Coquand, 1862 † accepted as Neithea dutrugei (Coquand, 1862) † (unaccepted > superseded combination)
18. Species Janira euryotis Pictet & Campiche, 1870 † accepted as Neithea deshayana (Matheron, 1843) † (unaccepted > junior subjective synonym)
19. Species Janira fallax Michelotti, 1861 † accepted as Gigantopecten arcuatus (Brocchi, 1814) † (unaccepted > junior subjective synonym)
20. Species Janira faucignyana Pictet & Roux, 1853 † accepted as Neithea gibbosa (Pulteney, 1813) † (unaccepted > junior subjective synonym)
21. Species Janira faujasi Pictet & Campiche, 1870 † accepted as Neithea regularis (Schlotheim, 1813) † (unaccepted > junior subjective synonym)
22. Species Janira ficalhoi Choffat, 1888 † accepted as Neithea alpina (A. d'Orbigny, 1847) † (unaccepted > junior subjective synonym)
23. Species Janira fleuriausiana A. d'Orbigny, 1847 † accepted as Neithea fleuriausiana (A. d'Orbigny, 1847) † (unaccepted > superseded combination)
24. Species Janira gardineri E. A. Smith, 1903 accepted as Serratovola gardineri (E. A. Smith, 1903) (original combination)
25. Species Janira geinitzii A. d'Orbigny, 1850 † accepted as Neithea regularis (Schlotheim, 1813) † (unaccepted > junior subjective synonym)
26. Species Janira hemicyclica Ravenel, 1855 † accepted as Euvola hemicyclica (Ravenel, 1855) † (unaccepted > superseded combination)
27. Species Janira hispanica A. d'Orbigny, 1850 † accepted as Neithea hispanica (A. d'Orbigny, 1850) † (unaccepted > superseded combination)
28. Species Janira johannisboehmi Tiessen, 1895 † accepted as Neithella notabilis (Münster, 1833) † (unaccepted > junior subjective synonym)
29. Species Janira laevigata Gabb, 1881 † accepted as Euvola limonensis (Dall, 1898) † (unaccepted > junior homonym, junior secondary homonym of Pecten laevigatus Goldfuss, 1833; Pecten limonensis is a replacement name)
30. Species Janira lapparenti Choffat, 1900 † accepted as Neithea fleuriausiana (A. d'Orbigny, 1847) † (unaccepted > junior subjective synonym)
31. Species Janira longicauda A. d'Orbigny, 1847 † accepted as Neithella notabilis (Münster, 1833) † (unaccepted > junior subjective synonym)
32. Species Janira morrisi Pictet & Renevier, 1858 † accepted as Neithea syriaca (Conrad, 1852) † (unaccepted > junior subjective synonym)
33. Species Janira mortoni A. d'Orbigny, 1850 † accepted as Neithea quinquecostata (J. Sowerby, 1814) † (unaccepted > junior subjective synonym)
34. Species Janira neocomiensis A. d'Orbigny, 1847 † accepted as Neithea (Neitheops) neocomiensis (A. d'Orbigny, 1847) † represented as Neithea neocomiensis (A. d'Orbigny, 1847) † (unaccepted > superseded combination)
35. Species Janira phaseola (Lamarck, 1819) † accepted as Neithea aequicostata (Lamarck, 1819) † (subjective synonym)
36. Species Janira pumila G. Seguenza, 1880 † accepted as Pecten labnae Mayer-Eymar, 1876 † (junior homonym of Pecten pumilus Lamarck, 1819; synonym)
37. Species Janira rhegiensis G. Seguenza, 1880 † accepted as Pecten bipartitus (Foresti, 1876) † (unaccepted > junior subjective synonym)
38. Species Janira sexangularis A. d'Orbigny, 1847 † accepted as Neithea sexangularis (A. d'Orbigny, 1847) † (unaccepted > superseded combination)
39. Species Janira soror Gabb, 1873 † accepted as Euvola soror (Gabb, 1873) † (unaccepted > superseded combination)
40. Species Janira stefanoi Choffat, 1900 † accepted as Neithea stefanoi (Choffat, 1900) † (unaccepted > superseded combination)
41. Species Janira subspinulosus G. Seguenza, 1880 † accepted as Aequipecten angelonii (Meneghini, 1878) † (unaccepted > junior subjective synonym)
42. Species Janira substriatocostata A. d'Orbigny, 1850 † accepted as Neithea striatocostata (Goldfuss, 1833) † (unaccepted > junior objective synonym)
43. Species Janira syriaca Conrad, 1852 † accepted as Neithea syriaca (Conrad, 1852) † (unaccepted > superseded combination)
44. Species Janira tricostata Coquand, 1862 † accepted as Neithea coquandi (Péron, 1877) † (unaccepted > junior homonym, junior homonym of Pecten tricostatus Bayle, 1849, nec J. Müller, 1859; Janira coquandi is a replacement name)
45. Species Janira truellei A. d'Orbigny, 1847 † accepted as Neithea striatocostata (Goldfuss, 1833) † (unaccepted > junior subjective synonym)
46. Species Janira valangiensis Pictet & Campiche, 1870 † accepted as Neithea (Neitheops) valangiensis (Pictet & Campiche, 1870) † represented as Neithea valangiensis (Pictet & Campiche, 1870) † (unaccepted > superseded combination)
47. Species Janira welwitschi Choffat, 1888 † accepted as Neithea coquandi (Péron, 1877) † (unaccepted > junior subjective synonym)
48. Species Janira wrightii Shumard, 1860 † accepted as Neithella wrightii (Shumard, 1860) † (unaccepted > superseded combination)
49. Species Janira zitteli Pirona, 1884 † accepted as Neithea zitteli (Pirona, 1884) † (unaccepted > superseded combination)
50. Species Janira laevicostata G. Seguenza, 1880 † (uncertain > taxon inquirendum)
51. Species Janira matheroniana de Loriol, 1866 † (uncertain > nomen dubium)

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