1. Species Conchoecia angustipilata Chavtur, in Chavtur & Bashmanov, 2018
2. Species Conchoecia belgicae Müller, 1906
3. Species Conchoecia gaussi Mueller, 1908
4. Species Conchoecia giesbrechti Müller, 1906
5. Species Conchoecia glandulosa Müller G. W., 1906
6. Species Conchoecia hettacra Müller, 1906
7. Species Conchoecia indica Merrylal James, 1972
8. Species Conchoecia isocheira Müller G. W., 1906
9. Species Conchoecia kyrtophora Müller G. W., 1906
10. Species Conchoecia leptothrix Müller, 1906
11. Species Conchoecia magna Claus, 1874
12. Species Conchoecia rudyakovi Chavtur, in Chavtur & Bashmanov, 2018
13. Species Conchoecia sculpta Chavtur, in Chavtur & Bashmanov, 2018
14. Species Conchoecia subarcuata Claus, 1890
15. Species Conchoecia teretivalvata Iles, 1953
16. Species Conchoecia abyssalis Rudjakov, 1962 accepted as Metaconchoecia abyssalis (Rudjakov, 1962) (unaccepted > superseded combination, superseded original combination)
17. Species Conchoecia acuminata accepted as Conchoecetta acuminata Claus, 1890 (junior synonym)
18. Species Conchoecia acutimarginata (Chavtur, 1977) accepted as Loricoecia acutimarginata Chavtur, 1977 (unaccepted > superseded combination)
19. Species Conchoecia aequiseta Müller G. W., 1906 accepted as Paraconchoecia aequiseta (Müller, G. W., 1906)
20. Species Conchoecia alata Müller, 1906 accepted as Alacia alata (Müller, 1906)
21. Species Conchoecia ametra Müller, 1906 accepted as Conchoecissa ametra (Müller, 1906) (superseded original combination)
22. Species Conchoecia atlantica (Lubbock, 1856) accepted as Orthoconchoecia atlantica (Lubbock, 1856)
23. Species Conchoecia bathyrotundata (Chavtur, 1977) accepted as Metaconchoecia bathyrotundata Chavtur, 1977 (unaccepted > superseded combination)
24. Species Conchoecia bispinosa accepted as Orthoconchoecia bispinosa (Claus, 1890) (junior synonym)
25. Species Conchoecia borealis Sars, 1866 accepted as Boroecia borealis (Sars, 1866) (unaccepted > superseded combination)
26. Species Conchoecia convexa Deevey, 1977 accepted as Proceroecia convexa (Deevey, 1977) (Re-assigned to a new genus)
27. Species Conchoecia ctenophora accepted as Loricoecia ctenophora (Müller, G. W., 1906) (junior synonym)
28. Species Conchoecia curta accepted as Mikroconchoecia curta (Lubbock, 1860) (junior synonym)
29. Species Conchoecia daphnoides accepted as Conchoecilla daphnoides Claus, 1890 (junior synonym)
30. Species Conchoecia decipiens Müller, 1906 accepted as Paraconchoecia decipiens (Müller, G. W., 1906)
31. Species Conchoecia dichotoma Müller, 1906 accepted as Paramollicia dichotoma (Müller, G. W., 1906) (superseded original combination)
32. Species Conchoecia edentata Müller G. W., 1906 accepted as Gaussicia edentata (Müller, G. W., 1906) (unaccepted > superseded combination)
33. Species Conchoecia elegans G.O. Sars, 1866 accepted as Discoconchoecia elegans (Sars, 1866)
34. Species Conchoecia haddoni Brady & Norman, 1896 accepted as Orthoconchoecia haddoni (Brady & Norman, 1896) (superseded original combination)
35. Species Conchoecia hirsuta Müller, 1906 accepted as Paraconchoecia hirsuta (Müller, G. W., 1906)
36. Species Conchoecia hyalophyllum Claus, 1890 accepted as Hyalocoecia hyalophyllum (Claus, 1890) (generic transfer)
37. Species Conchoecia imbricata (Brady, 1880) accepted as Conchoecissa imbricata (Brady, 1880) (superseded combination)
38. Species Conchoecia inermis accepted as Paraconchoecia inermis Claus, 1890 (junior synonym)
39. Species Conchoecia kampta accepted as Mollicia kampta Müller G. W., 1906 (junior synonym)
40. Species Conchoecia lophura Müller G. W., 1906 accepted as Lophuroecia lophura (Müller, 1906) (generic transfer)
41. Species Conchoecia loricata Claus, 1894 accepted as Loricoecia loricata (Claus, 1894) (superseded original combination)
42. Species Conchoecia macrocheira Müller G. W., 1906 accepted as Macrochoecilla macrocheira (Müller, 1906) (generic transfer)
43. Species Conchoecia mamillata Müller, 1906 accepted as Paraconchoecia mamillata (Müller, 1906)
44. Species Conchoecia maxima Brady & Norman, 1896 accepted as Boroecia maxima (Brady & Norman, 1896) (superseded original combination)
45. Species Conchoecia microprocera Angel, 1971 accepted as Proceroecia microprocera (Angel, 1971) (superseded original combination)
46. Species Conchoecia nanomamillata Deevey & Brooks, 1980 accepted as Paraconchoecia nanomamillata (Deevey & Brooks, 1980) accepted as Mamilloecia nanomamillata (Deevey & Brooks, 1980) (basionym)
47. Species Conchoecia nasotuberculata Müller G. W., 1906 accepted as Nasoecia nasotuberculata (Müller, G. W., 1906) (unaccepted > superseded combination)
48. Species Conchoecia oblonga accepted as Paraconchoecia oblonga Claus, 1890 (junior synonym)
49. Species Conchoecia obtusata accepted as Obtusoecia obtusata (Sars, 1866) (junior synonym)
50. Species Conchoecia parthenoda Müller G. W., 1906 accepted as Porroecia parthenoda (Müller, G. W., 1906) accepted as Parthenoecia parthenoda (Müller, 1906) (junior synonym)
51. Species Conchoecia parvidentata Müller G. W., 1906 accepted as Parvidentoecia parvidentata (Müller, 1906) (generic transfer)
52. Species Conchoecia pectinata Leveau, 1966 accepted as Pseudoconchoecia concentrica (Müller, G. W., 1906) (junior synonym)
53. Species Conchoecia plinthina Müller G. W., 1906 accepted as Conchoecissa plinthina (Müller, G. W., 1906) (unaccepted > superseded combination)
54. Species Conchoecia porrecta accepted as Porroecia porrecta (Claus, 1890) (junior synonym)
55. Species Conchoecia procera Mueller, 1894 accepted as Proceroecia procera (Müller, G. W., 1894) (unaccepted > superseded combination, superseded original combination)
56. Species Conchoecia pseudodiscophora Rudjakov, 1962 accepted as Paraconchoecia pseudodiscophora (Rudjakov, 1962) (unaccepted > superseded combination, superseded original combination)
57. Species Conchoecia pseudoparthenoda Angel, 1972 accepted as Porroecia pseudoparthenoda (Angel, 1972) (superseded original combination)
58. Species Conchoecia pusilla Müller, 1906 accepted as Clausoecia pusilla (Müller, G. W., 1906) (superseded original combination)
59. Species Conchoecia rhynchena accepted as Paramollicia rhynchena Müller G. W., 1906 (junior synonym)
60. Species Conchoecia rotundata Müller, 1890 accepted as Metaconchoecia rotundata (Müller, G. W., 1890) (Change of genus)
61. Species Conchoecia secernenda accepted as Orthoconchoecia secernenda (Vavra, 1906) (junior synonym)
62. Species Conchoecia spinifera accepted as Paraconchoecia spinifera Claus, 1890 (junior synonym)
63. Species Conchoecia spinirostris accepted as Porroecia spinirostris (Claus, 1874) (junior synonym)
64. Species Conchoecia squamosa Mueller, 1906 accepted as Conchoecissa squamosa (Mueller, 1906) (unaccepted > superseded combination, superseded original combination)
65. Species Conchoecia stigmatica accepted as Mikroconchoecia stigmatica Müller G. W., 1906 (junior synonym)
66. Species Conchoecia symmetrica Müller G. W., 1906 accepted as Conchoecissa symmetrica (Müller, G. W., 1906) (unaccepted > superseded combination)
67. Species Conchoecia valdiviae Müller, 1906 accepted as Alacia valdiviae (Müller, 1906) (junior synonym)
68. Species Conchoecia vityazi Rudjakov, 1962 accepted as Proceroecia vitjazi (Rudjakov, 1962) accepted as Proceroecia vityazi (Rudjakov, 1962) (unaccepted > superseded combination)

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