Preston, H.B. 1913. New species and varieties of terrestrial and fluviatile shells from equatorial Africa. Revue Zoologique Africaine 3(1): 47-62, pls. 4-6. Available electronically.

Preston, 1913. Rev. Zool. Afr. 3(1): 60, pl. 4, fig. 9.
Type(s): HOLOTYPE (MONOTYPY) MRAC_56588, Lac Nyassa.
Preston, 1913. Rev. Zool. Afr. 3(1): 60.
(intro'd as intra-sp. of Unio tanganyicensis E.A. Smith, 1880)

Preston, 1913. Rev. Zool. Afr. 3(1): 59, pl. 4, fig. 10.
(intro'd as intra-sp. of Unio nyassaensis Lea, 1864)
Type(s): HOLOTYPE (MONOTYPY) MRAC_56413, Riv. Shire, ... Lac Nyassa.

Preston, 1913. Rev. Zool. Afr. 3(1): 60, pl. 4, fig. 11.
Type(s): HOLOTYPE (MONOTYPY) MRAC_56593, Kasanga, confluent du div Lukulu et Luapula.

Preston, 1913. Rev. Zool. Afr. 3(1): 61, pl. 6, fig. 4.
Type(s): HOLOTYPE (MONOTYPY) MRAC_57422, confluence of the Lukulu and Luapula rivers, Belgian Congo.

Preston, 1913. Rev. Zool. Afr. 3(1): 61, pl. 6, fig. 7.
Type(s): HOLOTYPE MRAC_57421, Riv. Shire.

Preston, 1913. Rev. Zool. Afr. 3(1): 62, pl. 5, fig. 15.
Type(s): HOLOTYPE (ORIG. DESIG.) MRAC_57522, Nyassa.
‘Lea’ Preston, 1913. Rev. Zool. Afr. 3(1): 59.
(error for Unio nyassaensis Lea, 1864)

Preston, 1913. Rev. Zool. Afr. 3(1): 61, pl. 6, fig. 6.
Type(s): HOLOTYPE (MONOTYPY) MRAC_57420, Riv Shire, pres... Nyassa.