Agriolimax (Arctolimax) Westerlund, 1894 accepted as Deroceras Rafinesque, 1820 (original description)
Anodonta (Pseudanodonta) acutalis Westerlund, 1894 accepted as Pseudanodonta complanata (Rossmässler, 1835) (original description)
Anodonta aeneolina Drouët, 1893 accepted as Anodonta cygnea (Linnaeus, 1758) (basis of record)
Anodonta baudoniana Drouët, 1893 accepted as Anodonta anatina (Linnaeus, 1758) (additional source)
Anodonta fuliginea Drouët, 1893 accepted as Anodonta cygnea (Linnaeus, 1758) (basis of record)
Anodonta gregalis Drouët, 1893 accepted as Anodonta cygnea (Linnaeus, 1758) (basis of record)
Anodonta laevigata Drouët, 1893 accepted as Anodonta cygnea (Linnaeus, 1758) (basis of record)
Anodonta lanceolata Drouët, 1893 accepted as Anodonta cygnea (Linnaeus, 1758) (basis of record)
Anodonta limbata Drouët, 1893 accepted as Anodonta cygnea (Linnaeus, 1758) (basis of record)
Anodonta macella Drouët, 1893 accepted as Anodonta cygnea (Linnaeus, 1758) (basis of record)
Anodonta planulata Drouët, 1893 accepted as Anodonta cygnea (Linnaeus, 1758) (basis of record)
Anodonta pulchella Drouët, 1893 accepted as Anodonta cygnea (Linnaeus, 1758) (basis of record)
Anodonta retziana Drouët, 1893 accepted as Anodonta cygnea (Linnaeus, 1758) (basis of record)
Anodonta viridiflava Drouët, 1893 accepted as Anodonta anatina (Linnaeus, 1758) (basis of record)
Buliminus (Chondrulopsis) retroplicatus Westerlund, 1894 accepted as Pupopsis retrodens (E. von Martens, 1879) (original description)
Buliminus (Chondrulus) munitus Westerlund, 1894 accepted as Chondrula munita (Westerlund, 1894) (original description)
Buliminus (Chondrulus) mygdonicus Westerlund, 1894 (original description)
Buliminus (Chondrulus) pindicus Westerlund, 1894 accepted as Chondrula pindica (Westerlund, 1894) (original description)
Bythinia tentaculata var. gemina Westerlund, 1894 (original description)
Bythinia tentaculata var. intricata Westerlund, 1894 (original description)
Bythinia tentaculata var. villae Westerlund, 1894 (original description)
Clausilia (Albinaria) argolina Westerlund, 1894 accepted as Albinaria profuga (Charpentier, 1852) (original description)
Clausilia (Albinaria) cathara Westerlund, 1894 accepted as Albinaria nivea cathara (Westerlund, 1894) (original description)
Clausilia (Albinaria) cephalonica Westerlund, 1894 (original description)
Clausilia (Albinaria) cytherae var. petronella Westerlund, 1894 accepted as Albinaria cytherae (O. Boettger, 1894) (original description)
Clausilia (Albinaria) heterochroa Westerlund, 1894 accepted as Albinaria grisea heterochroa (Westerlund, 1894) (original description)
Clausilia (Albinaria) levisculpta Westerlund, 1894 accepted as Carinigera calabacensis (Westerlund, 1892) (original description)
Clausilia (Albinaria) menelaos (E. von Martens, 1873) accepted as Albinaria menelaus (E. von Martens, 1873) (basis of record)
Clausilia (Albinaria) menelaos var. juncea Westerlund, 1894 accepted as Albinaria menelaus (E. von Martens, 1873) (original description)
Clausilia (Albinaria) orina Westerlund, 1894 accepted as Inchoatia haussknechti orina (Westerlund, 1894) (original description)
Clausilia (Albinaria) profuga (Charpentier, 1852) accepted as Albinaria profuga (Charpentier, 1852) (basis of record)
Clausilia (Albinaria) profuga var. collaris Westerlund, 1894 (original description)
Clausilia (Albinaria) refuga Westerlund, 1894 accepted as Inchoatia haussknechti refuga (Westerlund, 1894) (original description)
Clausilia (Albinaria) violascens Westerlund, 1894 accepted as Albinaria hians violascens (Westerlund, 1894) (original description)
Clausilia (Delima) allyphanta Westerlund, 1894 accepted as Siciliaria septemplicata septemplicata (R. A. Philippi, 1836) (original description)
Clausilia (Papillifera) livadica Westerlund, 1894 accepted as Isabellaria clandestina (Rossmässler, 1857) (original description)
Clausilia (Papillifera) livadica var. scoliostoma Westerlund, 1894 accepted as Isabellaria clandestina (Rossmässler, 1857) (original description)
Corbicula pusilla var. ovalis Westerlund, 1894 accepted as Corbicula fluminalis (O. F. Müller, 1774) (original description)
Helix (Arionta) arbustorum var. gotlandica Westerlund, 1894 accepted as Arianta arbustorum (Linnaeus, 1758) (original description)
Helix (Arionta) arbustorum var. oelandica Westerlund, 1894 accepted as Arianta arbustorum (Linnaeus, 1758) (original description)
Helix (Campylaea) haeterea Westerlund, 1894 (original description)
Helix (Campylaea) planospira Lamarck, 1822 accepted as Campylaea planospira (Lamarck, 1822) (additional source)
Helix (Campylaea) planospira var. pavelii Westerlund, 1894 (original description)
Helix (Eulota) fruticum var. insularum Westerlund, 1894 (original description)
Helix (Macularia) vermiculata var. pelogosana Westerlund, 1894 accepted as Eobania vermicularia (Michelotti, 1840) † (original description)
Helix (Pomatia) nucula Mousson, 1854 accepted as Helix nucula Mousson, 1854 (basis of record)
Helix (Pomatia) nucula var. cathara Westerlund, 1894 (original description)
Helix (Tachea) vicaria Westerlund, 1894 (original description)
Helix (Theba) dirphica (E. von Martens, 1876) accepted as Monacha dirphica (E. von Martens, 1876) (basis of record)
Helix (Trichia) britannica Westerlund, 1894 (original description)
Helix (Trichia) britannica var. diploa Westerlund, 1894 (original description)
Helix (Xerophila) allophyla Westerlund, 1894 (original description)
Helix (Xerophila) emigrata Westerlund, 1894 accepted as Monacha emigrata (Westerlund, 1894) (original description)
Helix (Xerophila) psammita Westerlund, 1894 (original description)
Hyalinia (Polita) corcyrensis Westerlund, 1894 accepted as Oxychilus cyprius (L. Pfeiffer, 1847) (original description)
Hyalinia (Polita) subplana Westerlund, 1894 (original description)
Limnaea (Gulnaria) lagotis var. diploa Westerlund, 1894 accepted as Ampullaceana fontinalis (S. Studer, 1820) (original description)
Limnaea (Gulnaria) ovata var. bulla Westerlund, 1894 accepted as Ampullaceana balthica (Linnaeus, 1758) (original description)
Limnaea (Gulnaria) ovata var. raboti Westerlund, 1894 accepted as Ampullaceana balthica (Linnaeus, 1758) (original description)
Limnaea (Gulnaria) ovata var. subinflata Westerlund, 1894 accepted as Ampullaceana balthica (Linnaeus, 1758) (original description)
Limnaea (Lymnus) stagnalis var. acicularis Westerlund, 1894 (original description)
Limnaea (Lymnus) stagnalis var. gotlandica Westerlund, 1894 (original description)
Limnaea (Lymnus) stagnalis var. nordmanni Westerlund, 1894 accepted as Lymnaea stagnalis (Linnaeus, 1758) (original description)
Limnaea (Lymnus) stagnalis var. westerlundi (basis of record)
Limnaea (Lymnus) stagnalis var. westerlundi f. nereni Westerlund, 1894 accepted as Lymnaea stagnalis (Linnaeus, 1758) (original description)
Pisidium (Fossarina) hibernicum Westerlund, 1894 accepted as Euglesa hibernica (Westerlund, 1894) accepted as Euglesa parvula (Westerlund, 1873) (original description)
Planorbis (Armiger) dilectus Westerlund, 1894 (original description)
Planorbis (Gyraulus) leptostoma Westerlund, 1894 (original description)
Pomatias (Auritus) diplestes Westerlund, 1894 accepted as Auritus (Holcopoma) diplestes (Westerlund, 1894) accepted as Cochlostoma achaicum diplestes (Westerlund, 1894) (original description)
Pupa (Alaea) celata Westerlund, 1894 (original description)
Pupa (Lauria) fagoti Westerlund, 1894 accepted as Lauria cylindracea (Da Costa, 1778) (original description)
Pupa (Orcula) transversalis Westerlund, 1894 accepted as Orcula schmidtii transversalis (Westerlund, 1894) (original description)
Pupa (Torquilla) avenacea var. abundans Westerlund, 1894 accepted as Chondrina arcadica abundans (Westerlund, 1894) (original description)
Pupa (Torquilla) krueperi Westerlund, 1894 accepted as Granopupa granum (Draparnaud, 1801) (original description)
Pupa (Torquilla) pulchella var. manotiana Westerlund, 1894 accepted as Chondrina massotiana sexplicata (Bofill, 1886) accepted as Chondrina farinesii massotiana (Bourguignat, 1863) (original description)
Succinea (Amphibina) pfeifferi var. subelegans Westerlund, 1894 (original description)
Valvata (Cincinna) halopea Westerlund, 1894 (original description)
Valvata (Cincinna) piscinalis var. scharffi Westerlund, 1894 accepted as Valvata piscinalis (O. F. Müller, 1774) (original description)

Greece for Buliminus (Chondrulus) munitus Westerlund, 1894 
Greece for Buliminus (Chondrulus) pindicus Westerlund, 1894 
Greece for Helix (Xerophila) emigrata Westerlund, 1894