Helicarion perfragilis Preston, 1910 (original description)
Limnaea anceyana Preston, 1910 accepted as
Radix natalensis (Krauss, 1848) (original description)
Mutela cuneata Preston, 1910 accepted as
Mutela alata (I. Lea, 1864) (original description)
Mutela opalescens Preston, 1910 accepted as
Mutela alata (I. Lea, 1864) (original description)
Spatha approximans Preston, 1910 accepted as
Chambardia nyassaensis (I. Lea, 1864) (original description)
Spatha bertilloniana Preston, 1910 accepted as
Chambardia wahlbergi (Krauss, 1848) (original description)
Subulina maringoensis Preston, 1910 (original description)
Thapsia gereti Preston, 1910 (original description)
Unio angoniensis Preston, 1910 accepted as
Coelatura hypsiprymna (E. von Martens, 1897) (original description)
Unio charon Preston, 1910 accepted as
Unio caffer Krauss, 1848 (original description)
Unio choziensis Preston, 1910 accepted as
Coelatura choziensis (Preston, 1910) (original description)
Unio gereti Preston, 1910 accepted as
Coelatura horei (E. A. Smith, 1880) (original description)
Unio mashonae Preston, 1910 accepted as
Cafferia caffra (Krauss, 1848) accepted as
Unio caffer Krauss, 1848 (original description)
Unio shireensis Preston, 1910 accepted as
Coelatura mossambicensis (E. von Martens, 1860) (original description)
Unio vicinus Preston, 1910 accepted as
Unio silongweensis Preston, 1912 accepted as
Unio caffer Krauss, 1848 (original description)
Democratic Republic of the Congo for
Limnaea anceyana Preston, 1910
Democratic Republic of the Congo for
Subulina maringoensis Preston, 1910
Democratic Republic of the Congo for
Thapsia gereti Preston, 1910
Malawi for
Mutela cuneata Preston, 1910
Malawi for
Mutela opalescens Preston, 1910
Malawi for
Spatha approximans Preston, 1910
Malawi for
Spatha bertilloniana Preston, 1910
Malawi for
Unio angoniensis Preston, 1910
Malawi for
Unio charon Preston, 1910
Malawi for
Unio shireensis Preston, 1910
Tanzania for
Unio gereti Preston, 1910
Zambia for
Unio choziensis Preston, 1910
Zimbabwe for
Unio mashonae Preston, 1910