Actonia alexandrae (O. Boettger, 1902) † accepted as Alvania alexandrae O. Boettger, 1902 † (new combination reference)
Actonia crassistriata (S. V. Wood, 1848) † accepted as Alvania crassistriata (S. V. Wood, 1848) † (new combination reference)
Alaba (Gibborissoa) Cossmann, 1921 accepted as Alaba (Gibborissoia) Sacco, 1895 accepted as Gibborissoia Sacco, 1895 (original description)
Alaba (Gibborissoa) algeriensis Cossmann, 1921 † (original description)
Alaba (Gibborissoa) pliocaenica Cossmann, 1921 † (original description)
Alvania (Alcidiella) Cossmann, 1921 accepted as Alvania Risso, 1826 (original description)
Alvania (Alvinia) bonneti Cossmann, 1921 † accepted as Alvania bonneti Cossmann, 1921 † (original description)
Alvania (Alvinia) littorinoides Cossmann, 1921 † (original description)
Alvania gourbesvillensis Cossmann, 1921 † (original description)
Alvania littorinoides Cossmann, 1921 † (original description)
Alvania sacyi Cossmann, 1921 † (original description)
Alvania urgonensis Cossmann, 1918 † (basis of record)
Amnicola (Amnicola) moguntina O. Boettger, 1884 † accepted as Valvata moguntina (O. Boettger, 1884) † (new combination reference)
Amnicola moguntina O. Boettger, 1884 † accepted as Valvata moguntina (O. Boettger, 1884) † (new combination reference)
Anisocycla rutoti Cossmann, 1921 † accepted as Ebala rutoti (Cossmann, 1921) † (original description)
Arsenia gourbesvillensis Cossmann, 1921 † accepted as Alvania gourbesvillensis Cossmann, 1921 † (original description)
Arsenia punctura var. frigida Cossmann, 1921 † accepted as Alvania frigida (Cossmann, 1921) † (original description)
Bithinia vidali Cossmann, 1921 † accepted as Bithynia vidali Cossmann, 1921 † (original description)
Buvignieria Cossmann, 1921 † (original description)
Buvignieria duplicata (J. De C. Sowerby, 1829) † (new combination reference)
Calvadosia Cossmann, 1921 † accepted as Calvadosiella Wenz, 1939 † (original description)
Capuloidea J. Fleming, 1822 (additional source)
Ceratia convexispira Cossmann, 1921 † (original description)
Chevallieria sallomacensis Cossmann, 1921 (original description)
Cingula (Obtusella) Cossmann, 1921 accepted as Obtusella Cossmann, 1921 (original description)
Dialopsis sacyi Cossmann, 1921 † (original description)
Eulimene S. V. Wood, 1872 † accepted as Eula Kadolsky, 1973 † (subsequent type designation)
Gibborissoa conica Cossmann, 1921 † (original description)
Gibborissoa polycolpata Cossmann, 1921 † (original description)
Goniatogyra Cossmann, 1921 † (original description)
Hydrobia brusinai Cossmann, 1921 † (original description)
Hydrobia stachei Cossmann, 1921 † (original description)
Leaella Cossmann, 1921 † (original description)
Litiopa delamothei Cossmann, 1920 † (original description)
Manzonia (Taramellia) boettgeri Cossmann, 1921 † accepted as Manzonia boettgeri Cossmann, 1921 † (original description)
Manzonia (Taramellia) subspinicosta Cossmann, 1921 † accepted as Alvania aquensis (Grateloup, 1838) † (original description)
Manzonia equestris (Bonelli) † (new combination reference)
Miraldiella Cossmann, 1921 accepted as Pseudoscilla O. Boettger, 1902 (original description)
Miraldiella exarata (P. P. Carpenter, 1857) accepted as Pseudoscilla exarata (P. P. Carpenter, 1857) (new combination reference)
Nisostomia Cossmann, 1921 † accepted as Ondina de Folin, 1870 (original description)
Nisostomia (Nisostomia) Cossmann, 1921 † accepted as Ondina de Folin, 1870 (original description)
Nisostomia mogutensis Cossmann, 1921 † accepted as Odostomia acutiuscula (A. Braun, 1851) † (original description)
Nodulus morgani Cossmann, 1921 † (original description)
Nystia romani Cossmann, 1921 † (original description)
Odontostomia (Colpostomia) Cossmann, 1921 † accepted as Colpostomia Cossmann, 1921 † (original description)
Odontostomia (Nisostomia) Cossmann, 1921 † accepted as Ondina de Folin, 1870 (original description)
Odontostomia (Nisostomia) moguntensis Cossmann, 1921 † (original description)
Odontostomia (Sinustomia) Cossmann, 1921 accepted as Odostomia J. Fleming, 1813 (original description)
Odontostomia cerullii Cossmann, 1921 † accepted as Ondina cerullii (Cossmann, 1921) † (original description)
Odontostomia praenominata Cossmann, 1921 † accepted as Brachystomia praenominata (Cossmann, 1921) † (original description)
Odontostomia vera Cossmann, 1921 † (original description)
Odostomia (Pyramistomia) Cossmann, 1921 accepted as Pyramistomia Cossmann, 1921 (original description)
Paladilhia (Lartetella) Cossmann, 1921 † represented as Paladilhia Bourguignat, 1865 (original description)
Peringia dollfusi Cossmann, 1921 † (original description)
Pezantia Cossmann, 1896 † (basis of record)
Pisinna Monterosato, 1878 (subsequent type designation)
Polygyreulima accepted as Polygireulima Sacco, 1892 (basis of record)
Polytropis F. Sandberger, 1875 † (subsequent type designation)
Potamaclis forbesii (J. Morris, 1856) † (additional source)
Pyramidella ameghinoi Cossmann, 1921 † (original description)
Pyramidella depontaillieri Cossmann, 1921 † (original description)
Pyrgolamprus Cossmann, 1921 accepted as Pyrgolampros Sacco, 1892 accepted as Turbonilla Risso, 1826 (original description)
Pyrgulina (Ividiella) [sic] accepted as Ividella Dall & Bartsch, 1909 (basis of record)
Pyrgulina (Parthenina) dollfusi Cossmann, 1921 † accepted as Parthenina peyroti (Gougerot, 1978) † (original description)
Pyrgulina alpinoligustica Sacco, 1892 accepted as Spiralina alpinoligustica (Sacco, 1892) (basis of record)
Pyrgulina brusinai Cossmann, 1921 accepted as Spiralinella incerta (Milaschewitsch, 1916) accepted as Spiralina alpinoligustica (Sacco, 1892) (original description)
Rissoa crassistria [sic] † accepted as Rissoa crassistriata S. V. Wood, 1848 † accepted as Alvania crassistriata (S. V. Wood, 1848) † (basis of record)
Rissoa cureti Cossmann, 1918 † (basis of record)
Rissoa equestris Bonelli † accepted as Manzonia equestris (Bonelli) † (basis of record)
Rissoa intersecta S. V. Wood, 1857 accepted as Obtusella intersecta (S. V. Wood, 1857) (additional source)
Rissoa jurensis Etallon, 1862 † (basis of record)
Rissoa spinosa G. Seguenza † (basis of record)
Rissoina (Leaella) Cossmann, 1921 † represented as Rissoina A. d'Orbigny, 1841 (original description)
Rissoina acuticarina (Blake, 1880) † accepted as Buvignieria acuticarina (Blake, 1880) † (basis of record)
Rissoina dactyliosa (Deshayes, 1861) † accepted as Pezantia dactyliosa (Deshayes, 1861) † (basis of record)
Rissoina duplicata (J. De C. Sowerby, 1829) † accepted as Buvignieria duplicata (J. De C. Sowerby, 1829) † (basis of record)
Rissoina gaasensis Cossmann, 1921 † (original description)
Rissoina guppyi Cossmann, 1921 † (original description)
Rissoina milleri Lycett, 1863 † accepted as Buvignieria milleri (Lycett, 1863) † (additional source)
Rissoina moloti (Cossmann, 1907) † accepted as Pseudotaphrus moloti Cossmann, 1907 † (basis of record)
Rissoina moreleti de Raincourt, 1884 † accepted as Pseudotaphrus morleti (de Raincourt, 1884) † (basis of record)
Rissoina multistriata Piette, 1855 † accepted as Buvignieria duplicata (J. De C. Sowerby, 1829) † (basis of record)
Rissoina obliquata (J. De C. Sowerby, 1829) † accepted as Palaeorissoina obliquata (J. De C. Sowerby, 1829) † (basis of record)
Rissoina obtusa Lycett, 1850 † (additional source)
Rissoina podolica Cossmann, 1921 † accepted as Rissoina subconoidea (Grateloup, 1847) † (original description)
Rissoina transversaria Deshayes, 1861 † accepted as Pseudotaphrus transversarius (Deshayes, 1861) † (additional source)
Rissoina tricarinata J. Morris & Lycett, 1851 † (basis of record)
Rissoina unicarina (Buvignier, 1843) † accepted as Buvignieria unicarina (Buvignier, 1843) † (new combination reference)
Rissoina valfini (Guirand & Ogérien, 1865) † accepted as Rissoa valfini Guirand & Ogérien, 1865 † (new combination reference)
Robicia (Annulifer) Cossmann, 1921 † accepted as Annulifer Cossmann, 1921 † (original description)
Stossichia haudcostulata "Boettger" Cossmann, 1921 † (basis of record)
Stossicia Cossmann, 1921 accepted as Stosicia Brusina, 1871 (basis of record)
Stossicia Cossmann, 1921 accepted as Stosicia Brusina, 1871 (original description)
Stylifer P. Fischer, 1864 accepted as Stilifer Broderip, 1832 (additional source)
Syrnola (Pachysyrnola) faurai Cossmann, 1921 † (original description)
Syrnola (Puposyrnola) Cossmann, 1921 accepted as Puposyrnola Cossmann, 1921 (original description)
Syrnola (Puposyrnola) pliocaenica Cossmann, 1921 † (original description)
Trochoturbella Cossmann, 1921 † (original description)
Trochoturbella (Calvadosia) brasili Cossmann, 1921 † accepted as Calvadosiella brasili (Cossmann, 1921) † (original description)
Trochoturbella moreyensis (Cossmann, 1885) † (basis of record)

Algeria for Litiopa delamothei Cossmann, 1920 † 
France for Alaba (Gibborissoa) algeriensis Cossmann, 1921 † 
France for Alaba (Gibborissoa) pliocaenica Cossmann, 1921 † 
France for Alvania (Alvinia) bonneti Cossmann, 1921 † 
France for Alvania (Alvinia) littorinoides Cossmann, 1921 † 
France for Alvania sacyi Cossmann, 1921 † 
France for Anisocycla rutoti Cossmann, 1921 † 
France for Ceratia convexispira Cossmann, 1921 † 
France for Dialopsis sacyi Cossmann, 1921 † 
France for Gibborissoa conica Cossmann, 1921 † 
France for Gibborissoa polycolpata Cossmann, 1921 † 
France for Manzonia (Taramellia) subspinicosta Cossmann, 1921 † 
France for Nodulus morgani Cossmann, 1921 † 
France for Nystia romani Cossmann, 1921 † 
France for Odontostomia praenominata Cossmann, 1921 † 
France for Peringia dollfusi Cossmann, 1921 † 
France for Pyramidella depontaillieri Cossmann, 1921 † 
France for Pyrgulina (Parthenina) dollfusi Cossmann, 1921 † 
France for Rissoina gaasensis Cossmann, 1921 † 
France for Syrnola (Puposyrnola) pliocaenica Cossmann, 1921 † 
France for Turbella inflexicosta Cossmann, 1921 † 
France for Turbella tenuilineata Cossmann, 1921 † 
Germany for Manzonia (Taramellia) boettgeri Cossmann, 1921 † 
Italy for Odontostomia cerullii Cossmann, 1921 † 
Italy for Zebinella corrigenda Cossmann, 1921 † 
Jamaica for Rissoina guppyi Cossmann, 1921 † 
Mauritius for Dentrissoina miranda (Viader, 1938) 
Patagonia for Pyramidella ameghinoi Cossmann, 1921 † 
Slovenia for Hydrobia brusinai Cossmann, 1921 † 
Spain for Bithinia vidali Cossmann, 1921 † 
Spain for Syrnola (Pachysyrnola) faurai Cossmann, 1921 † 
Switzerland for Odontostomia (Nisostomia) moguntensis Cossmann, 1921 † 

 Additional information

 for Arsenia punctura var. frigida Cossmann, 1921 †

Apparently based on a manuscript name by Monterosato. Cossmann refers to (a) specimen(s) in his collection, ... [details]

 Synonymy

 for Arsenia frigida Cossmann, 1921 †

Arsenia regarded as junior synonym of Alvania  [details]

 Taxonomic remark

 for Pezantia Cossmann, 1896 †

The type species seems to belong to Zebinella (Rissoinidae). Therefore, Pezantia is provisionally regarded as a ... [details]

 Taxonomy

 for Dieretostoma Cossmann, 1888 †

treated as a senior synonym of Romania Cossmann, 1913 (family Hydrobiidae) by Cossmann (1921: 124); as a valid ... [details]

 Type locality

 for Bithinia vidali Cossmann, 1921 †

Teruel, Teruel, Spain; Oligocene [details]

 Type locality

 for Nystia romani Cossmann, 1921 †

Saint-Césaire-de-Gauzignan, Gard, France; early Rupelian, early Oligocene [details]

 Type species

 for Trochoturbella moreyensis (Cossmann, 1885) †

Type of the genus by original designation [details]