Achatina weynsi var. duperthuisi Germain, 1907 (original description)
Ampullaria chariensis Germain, 1905 accepted as Pila wernei (R. A. Philippi, 1851) (additional source)
Ampullaria chevalieri Germain, 1904 accepted as Pila wernei (R. A. Philippi, 1851) (additional source)
Bythinia (Gabbia) martreti (Germain, 1904) accepted as Bithynia martreti Germain, 1904 (additional source)
Bythinia (Gabbia) neothaumaeformis Germain, 1907 accepted as Gabbiella neothaumaeformis (Germain, 1907) (additional source)
Corbicula fischeri Germain, 1907 accepted as Corbicula fluminalis (O. F. Müller, 1774) (additional source)
Corbicula lacoini Germain, 1905 accepted as Corbicula tsadiana E. von Martens, 1903 (additional source)
Ennea gravieri Germain, 1907 accepted as Gulella gravieri (Germain, 1907) (original description)
Fischeria centralis Germain, 1904 accepted as Iphigenia centralis (Germain, 1904) (additional source)
Lanistes gribinguiensis Germain, 1905 accepted as Lanistes nsendweensis Dupuis & Putzeys, 1901 (additional source)
Limicolaria centralis Germain, 1904 accepted as Limicolaria kambeul (Bruguière, 1792) (additional source)
Mutela chevalieri Germain, 1904 accepted as Mutela dubia (Gmelin, 1791) (additional source)
Mutelina falemeensis Germain, 1907 accepted as Mutela dubia (Gmelin, 1791) (additional source)
Mutelina joubini Germain, 1904 accepted as Mutela joubini (Germain, 1904) (additional source)
Physa (Pyrgophysa) dautzenbergi Germain, 1905 accepted as Bulinus dautzenbergi (Germain, 1905) (additional source)
Physa (Pyrgophysa) dunkeri Germain, 1905 (additional source)
Physopsis martensi Germain, 1907 (additional source)
Planorbis tetragonostoma Germain, 1904 (additional source)
Planorbula tchadiensis Germain, 1904 accepted as Biomphalaria tchadiensis (Germain, 1904) (additional source)
Pliodon (Cameronia) hardeleti Germain, 1906 accepted as Mutela dubia (Gmelin, 1791) (additional source)
Pliodon (Cameronia) tchadiensis Germain, 1906 accepted as Mutela dubia (Gmelin, 1791) (additional source)
Segmentina chevalieri Germain, 1904 (additional source)
Spatha (Leptospatha) decorsei var. persinuata Germain, 1907 accepted as Aspatharia dahomeyensis (I. Lea, 1859) (original description)
Spatha mabillei var. mamounensis Germain, 1907 accepted as Aspatharia rochebrunei (Jousseaume, 1886) (additional source)
Sphaerium courteti Germain, 1904 accepted as Sphaerium hartmanni (Jickeli, 1874) (additional source)
Subulina krebedjeensis Germain, 1907 (original description)
Unio (Nodularia) aequatoria var. minor Germain, 1907 accepted as Coelatura aegyptiaca (Cailliaud, 1823) (original description)
Unio (Nodularia) bangoranensis Germain, 1907 accepted as Coelatura aegyptiaca (Cailliaud, 1823) (additional source)
Unio (Nodularia) chivoti Germain, 1907 accepted as Coelatura aegyptiaca (Cailliaud, 1823) (additional source)
Unio (Nodularia) lacoini Germain, 1907 accepted as Coelatura aegyptiaca (Cailliaud, 1823) (additional source)
Unio mutelaeformis Germain, 1907 accepted as Nitia mutelaeformis (Germain, 1907) (additional source)
Vivipara unicolor var. lenfanti Germain, 1907 accepted as Bellamya unicolor (Olivier, 1804) (original description)

Central African Republic for Ennea gravieri Germain, 1907 
Central African Republic for Subulina krebedjeensis Germain, 1907 
Chad for Achatina weynsi var. duperthuisi Germain, 1907 
Chad for Unio (Nodularia) aequatoria var. minor Germain, 1907 

 Nomenclature

 for Physa (Pyrgophysa) dunkeri Germain, 1905

Unused replacement name for Physa scalaris Dunker, 1845 non Physa scalaris (Jay, 1839) [details]

 Nomenclature

 for Spatha (Leptospatha) decorsei var. persinuata Germain, 1907

nom. nov. for Spatha decorsei var. sinuata Germain, 1904, non Spatha sinuata Martens, 1883 [details]