1. Species Specula agamennonei Cecalupo & Perugia, 2019
2. Species Specula albengai Cecalupo & Perugia, 2013
3. Species Specula angelobaraggiai Cecalupo & Perugia, 2021
4. Species Specula apexalba Cecalupo & Perugia, 2024
5. Species Specula bicolor Cecalupo & Perugia, 2012
6. Species Specula bisulcata Cecalupo & Perugia, 2023
7. Species Specula bogii Cecalupo & Perugia, 2021
8. Species Specula boholensis Cecalupo & Perugia, 2012
9. Species Specula campbellica (A. W. B. Powell, 1955)
10. Species Specula churamaris Cecalupo & Perugia, 2019
11. Species Specula copiosa Cecalupo & Perugia, 2012
12. Species Specula dagostinoi Cecalupo & Perugia, 2017
13. Species Specula dimatteoi Cecalupo & Perugia, 2017
14. Species Specula dubia Cecalupo & Perugia, 2013
15. Species Specula dumasi Cecalupo & Perugia, 2013
16. Species Specula estebbunensis Landau & Mulder, 2022 †
17. Species Specula flavida Cecalupo & Perugia, 2023
18. Species Specula fragilis Cecalupo & Perugia, 2012
19. Species Specula fuscata Cecalupo & Perugia, 2024
20. Species Specula giamminellii Cecalupo & Perugia, 2014
21. Species Specula gilvusfasciata Cecalupo & Perugia, 2024
22. Species Specula giustii Cecalupo & Perugia, 2021
23. Species Specula guttula Cecalupo & Perugia, 2017
24. Species Specula jumeauensis Cecalupo & Perugia, 2021
25. Species Specula koumacensis Cecalupo & Perugia, 2024
26. Species Specula laetae Cecalupo & Perugia, 2012
27. Species Specula mammilla (May, 1920)
28. Species Specula menoui Cecalupo & Perugia, 2017
29. Species Specula moalboalensis Cecalupo & Perugia, 2012
30. Species Specula molini Cecalupo & Perugia, 2013
31. Species Specula naoae Cecalupo & Perugia, 2019
32. Species Specula pelorcei Cecalupo & Perugia, 2013
33. Species Specula perimensis Cecalupo & Perugia, 2023
34. Species Specula perplexa Cecalupo & Perugia, 2017
35. Species Specula petitdevoizei Cecalupo & Perugia, 2013
36. Species Specula puillandrei Cecalupo & Perugia, 2013
37. Species Specula pulchella Cecalupo & Perugia, 2012
38. Species Specula pusilla Cecalupo & Perugia, 2013
39. Species Specula queenslandica Laseron, 1956
40. Species Specula regina Cotton, 1951
41. Species Specula retifera (Suter, 1908)
42. Species Specula ruali Cecalupo & Perugia, 2017
43. Species Specula santalensis Cecalupo & Perugia, 2017
44. Species Specula seragakiensis Cecalupo & Perugia, 2019
45. Species Specula servadeii Cecalupo & Perugia, 2017
46. Species Specula solai Cecalupo & Perugia, 2014
47. Species Specula styliformis (Suter, 1908)
48. Species Specula subcastanea Cecalupo & Perugia, 2018
49. Species Specula turbonilloides (Tenison Woods, 1879)
50. Species Specula vilvilfarei Cecalupo & Perugia, 2013
51. Species Specula yemenensis Cecalupo & Perugia, 2023
52. Subgenus Specula (Mendax) Finlay, 1926 accepted as Mendax H. J. Finlay, 1926
53. Subgenus Specula (Socienna) Finlay, 1926 accepted as Socienna H. J. Finlay, 1926
54. Species Specula canaliculata (Suter, 1908) accepted as Specula retifera (Suter, 1908) (synonym)
55. Species Specula dissimilis (Suter, 1908) accepted as Specula styliformis (Suter, 1908) (junior subjective synonym)
56. Species Specula infelix Marwick, 1931 † accepted as Cerithiella infelix (Marwick, 1931) † (superseded combination)
57. Species Specula marginata (Suter, 1908) accepted as Mendax marginatus (Suter, 1908)
58. Species Specula odhneri A. W. B. Powell, 1927 accepted as Mendax trizonalis odhneri (A. W. B. Powell, 1927) accepted as Mendax odhneri (A. W. B. Powell, 1927) (original combination)
59. Species Specula sassieri Cecalupo & Perugia, 2020 accepted as Phosinella sagraiana (A. d'Orbigny, 1842)
60. Species Specula widmeriana Cecalupo & Perugia, 2014 accepted as Sundaya widmeriana (Cecalupo & Perugia, 2014) (original combination)

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