Unio plicatulus Lea, 1859
Lea, 1859. Proc. Acad. Nat. Sci. 11: 152.
Lea, 1860. Jour. Acad. Nat. Sci. 4 [O. 7]: 247, pl. 37, fig. 126.
(homonym of Unio plicatulus Küster, 1856; renamed Unio borneensis Issel, 1874; renamed Unio pensitatus Fischer & Crosse, 1894)
Type(s): HOLOTYPE BMNH_1965156, locality data from Issel “Nord-Est di Borneo; nelle vicinanze della costa presso Mampawa; nel lago Donau Siriang (v. Martens).”.

Ctenodesma borneensis — Simpson (1900), Haas (1969), Pfeiffer et al. (2021)
Ctenodesma (s.s.) borneensis — Haas (1912)
Cristadens borneensis — Simpson (1914)

Unio borneensis Issel, 1874
Issel, 1874. Ann. Mus. Storia Nat. Genova 6: 113.
(new name for Unio plicatulus Lea, 1859)
Type(s): HOLOTYPE BMNH_1965156, locality data from Issel “Nord-Est di Borneo; nelle vicinanze della costa presso Mampawa; nel lago Donau Siriang (v. Martens).”.

Ctenodesma borneensis — Simpson (1900), Haas (1927), Thiele (1934), Haas (1969), Graf & Cummings (2007), ... Graf & Cummings (2021), Zieritz et al. (2021), Sahidin et al. (2021), Zieritz et al. (2024), Jeratthitikul et al. (2024)
Ctenodesma (s.s.) borneensis — Haas (1912), Haas (1924)
Cristadens borneensis — Simpson (1914)
Ctenodesma borneense — Haas (1969), Starobogatov (1970)
Ctenodesma sp. — Marwoto (1987)

Unio pensitatus Fischer & Crosse, 1894
Fischer & Crosse, 1894. Miss. Sci. Mexique, Rech. Zool. 2(16): 599.
(new name for Unio plicatulus Lea, 1859)

Ctenodesma borneensis — Simpson (1900), Haas (1969), Pfeiffer et al. (2021)
Ctenodesma (s.s.) borneensis — Haas (1912)
Cristadens borneensis — Simpson (1914)

Unio penisatus Simpson, 1900
‘Crosse & Fischer’ of Authors.
Simpson, 1900. Proc. U.S. Nat. Mus. 22: 853.
Haas, 1912. Conch. Cab. 9 (pt. 2, h. 46): 135.
Simpson, 1914. Descr. Cat. Naiades: 1155.
(error for Unio pensitatus Fischer & Crosse, 1894)