| Helisoma anceps var. politum F.C.Baker, 1945
                        synoniem |  | 
                
                    
                        | Gepubliceerd in:Baker, F. C. (1945). The molluscan family Planorbidae. Collation, revision, and additions by Harley Jones Van Cleave. xxxvi + 530 pp., 1 portrait. [4 April]. Urbana (University of Illinois Press). https://doi.org/10.5962/bhl.title.7026 | 
                
                
                
                
            
                
                    | Helisoma anceps var. idahoense F.C.Baker, 1945
                        synoniem |  | 
                
                    
                        | Gepubliceerd in:Baker, F. C. (1945). The molluscan family Planorbidae. Collation, revision, and additions by Harley Jones Van Cleave. xxxvi + 530 pp., 1 portrait. [4 April]. Urbana (University of Illinois Press). https://doi.org/10.5962/bhl.title.7026 | 
                
                
                
                
            
                
                    | Helisoma anceps var. bartschi F.C.Baker, 1945
                        synoniem |  | 
                
                    
                        | Gepubliceerd in:Baker, F. C. (1945). The molluscan family Planorbidae. Collation, revision, and additions by Harley Jones Van Cleave. xxxvi + 530 pp., 1 portrait. [4 April]. Urbana (University of Illinois Press). https://doi.org/10.5962/bhl.title.7026 | 
                
                
                
                
            
                
                    | Helisoma anceps var. anticostianum F.C.Baker, 1945
                        synoniem |  | 
                
                    
                        | Gepubliceerd in:Baker, F. C. (1945). The molluscan family Planorbidae. Collation, revision, and additions by Harley Jones Van Cleave. xxxvi + 530 pp., 1 portrait. [4 April]. Urbana (University of Illinois Press). https://doi.org/10.5962/bhl.title.7026 | 
                
                
                
                
            
                
                    | Helisoma anceps var. rushi F.C.Baker, 1939
                        synoniem |  | 
                
                    
                        | Gepubliceerd in:Baker, F. C. (1939). Land and fresh-water Mollusca from western Ontario. Canadian Journal of Research, Series D, 17: 87–102. https://www.molluscabase.org/aphia.php?p=sourcedetails&id=335082 | 
                
                
                
                
            
                
                    | Helisoma antrosa var. sayi F.C.Baker, 1928
                        synoniem |  | 
                
                    
                        | Gepubliceerd in:Baker, F. C. (1928). The fresh water Mollusca of Wisconsin. Part I. Gastropoda. Wisconsin Geological and Natural History Survey Bulletin, 70: xx + 507 pp. https://www.molluscabase.org/aphia.php?p=sourcedetails&id=299249 | 
                
                
                
                
            
                
                    | Planorbis antrosus latchfordi Pilsbry, 1927
                        synoniem |  | 
                
                    
                        | Gepubliceerd in:Pilsbry, H. A. (1927). A new subspecies of Planorbis. The Nautilus, 40(3): 79–80. https://www.molluscabase.org/aphia.php?p=sourcedetails&id=350144 | 
                
                
                
                
            
                
                    | Helisoma antrosa var. shellensis F.C.Baker, 1927
                        synoniem |  | 
                
                    
                        | Gepubliceerd in:Baker, F. C. (1927). New varieties of Helisoma antrosa from Wisconsin and Minnesota. The Nautilus, 40(3): 85–87. https://www.molluscabase.org/aphia.php?p=sourcedetails&id=350136 | 
                
                
                
                
            
                
                    | Helisoma antrosa var. minnesotensis F.C.Baker, 1927
                        synoniem |  | 
                
                    
                        | Gepubliceerd in:Baker, F. C. (1927). New varieties of Helisoma antrosa from Wisconsin and Minnesota. The Nautilus, 40(3): 85–87. https://www.molluscabase.org/aphia.php?p=sourcedetails&id=350136 | 
                
                
                
                
            
                
                    | Helisoma antrosa var. cahni F.C.Baker, 1927
                        synoniem |  | 
                
                    
                        | Gepubliceerd in:Baker, F. C. (1927). New varieties of Helisoma antrosa from Wisconsin and Minnesota. The Nautilus, 40(3): 85–87. https://www.molluscabase.org/aphia.php?p=sourcedetails&id=350136 | 
                
                
                
                
            
                
                    | Planorbis bicarinatus var. percarinatus B.Walker, 1909
                        synoniem |  | 
                
                    
                        | Gepubliceerd in:Walker, B. (1909). Notes on Planorbis II: P. bicarinatus. The Nautilus, 23(1): 1–10, pl. 1; 23(2): 21–32, pl. 2–3 (maps). https://www.molluscabase.org/aphia.php?p=sourcedetails&id=349965 | 
                
                
                
                
            
                
                    | Planorbis bicarinatus var. portagensis F.C.Baker, 1908
                        synoniem |  | 
                
                    
                        | Gepubliceerd in:Baker, F. C. (1908). A new American Planorbis. The Nautilus, 22(4–5): 45. https://www.molluscabase.org/aphia.php?p=sourcedetails&id=349581 | 
                
                
                
                
            
                
                    | Planorbis bicarinatus var. striatus F.C.Baker, 1902
                        synoniem |  | 
                
                    
                        | Gepubliceerd in:Baker, F. C. (1902). Planorbis bicarinatus striatus n. var. The Nautilus, 15(10): 120. https://www.molluscabase.org/aphia.php?p=sourcedetails&id=349904 | 
                
                
                
                
            
                
                    | Planorbis bicarinatus var. aroostookensis Pilsbry, 1895
                        synoniem |  | 
                
                    
                        | Gepubliceerd in:Pilsbry, H. A. (1895). New American fresh-water mollusks. The Nautilus, 8(10): 114–116. https://www.molluscabase.org/aphia.php?p=sourcedetails&id=301281 | 
                
                
                
                
            
                
                    | Planorbis bicarinatus major B.Walker, 1893
                        synoniem |  | 
                
                    
                        | Gepubliceerd in:Walker, B. (1893). The shell bearing Mollusca of Michigan. The Nautilus, 6(12): 135–141. https://www.molluscabase.org/aphia.php?p=sourcedetails&id=349791 | 
                
                
                
                
            
                
                    | Planorbis bicarinatus var. corrugatus Currier, 1868
                        synoniem |  | 
                
                    
                        | Gepubliceerd in:Currier, A. O. (1868). List of the shell-bearing Mollusca of Michigan, especially of Kent and adjoining counties. Miscellaneous Publications of Kent Scientific Institute (Grand Rapids), 1: 1–12. https://www.molluscabase.org/aphia.php?p=sourcedetails&id=299226 | 
                
                
                
                
            
                
                    | Planorbis bicarinatus var. unicarinatus Haldeman, 1844
                        synoniem |  | 
                
                    
                        | Gepubliceerd in:Haldeman, S. S. (1844). A monograph of the freshwater univalve Mollusca of the United States, including notices of species in other parts of North America. 7. J. Dobson, Philadelphia. 1–32, plates 1–4, 1–14, plate 1. https://www.molluscabase.org/aphia.php?p=sourcedetails&id=349433 | 
                
                
                
                
            
                
                    | Planorbis bicarinatus var. angistomus Haldeman, 1844
                        synoniem |  | 
                
                    
                        | Gepubliceerd in:Haldeman, S. S. (1844). A monograph of the freshwater univalve Mollusca of the United States, including notices of species in other parts of North America. 7. J. Dobson, Philadelphia. 1–32, plates 1–4, 1–14, plate 1. https://www.molluscabase.org/aphia.php?p=sourcedetails&id=349433 | 
                
                
                
                
            
                
                    | Planorbis bicarinatus var. major H.Beck, 1837
                        synoniem |  | 
                
                
                
                
            
                
                    | Planorbis engonatus Conrad, 1835
                        synoniem |  | 
                
                    
                        | Gepubliceerd in:Conrad, T. A. (1835). Appendix. Additions to, and corrections of, the catalogue of species of American naiades, with descriptions of new species and varieties of fresh water shells. Academy of Natural Sciences of Philadelphia, Philadelphia, U.S.A. pp 1-8, plate 9. https://www.molluscabase.org/aphia.php?p=sourcedetails&id=221475 | 
                
                
                
                
            
                
                    | Planorbis antrosus antrosus Conrad, 1834
                        synoniem |  | 
                
                
                
                
            
                
                    | Planorbis antrosus Conrad, 1834
                        synoniem |  | 
                
                    
                        | Gepubliceerd in:Conrad, T. A. (1834). Description of some new species of fresh water shells from Alabama, Tennessee, &c. American Journal of Science and Arts, 25(2): 338–343, plate 1. https://www.molluscabase.org/aphia.php?p=sourcedetails&id=220783 | 
                
                
                
                
            
                
                    | Helisoma antrosa (Conrad, 1834)
                        synoniem |  | 
                
                
                
                
            
                
                    | Planorbis anceps Menke, 1830
                        synoniem |  | 
                
                    
                        | Gepubliceerd in:Menke, K. T. (1830). Synopsis methodica molluscorum generum omnium et specierum earum, quae in Museo Menkeano adservantur; cum synonymia critica et novarum specierum diagnosibus. Ed. 2, auctior et emendatior. Georg Uslar, Pyrmont. xvi + 168 [+ 1, errata] pp. https://www.molluscabase.org/aphia.php?p=sourcedetails&id=39969 | 
                
                
                
                
            
                
                    | Planorbella anceps (Menke, 1830)
                        synoniem |  | 
                
                
                
                
            
                
                    | Planorbis bicarinatus G.B.Sowerby I, 1822
                        heterotypic synonym |  | 
                
                    
                        | Gepubliceerd in:Sowerby, & I, G. B. (1821). The genera of recent and fossil shells, for the use of students, in conchology and geology. Published in 42 numbers. Vol. 1, pls 1-126 [1821-1825]; vol. 2, pls 127-262 + text (unpaginated) [1825-1834]. London: Sowerby. Vol 1, London: G.B. Sowerby. https://doi.org/10.5962/bhl.title.86281 | 
                
                
                
                
            
                
                    | Helix angulata Rackett, 1821
                        synoniem |  | 
                
                    
                        | Gepubliceerd in:Rackett, T. (1821). Description of some shells found in Canada. Transactions of the Linnean Society of London, 13: 42–43, plate 5. https://www.molluscabase.org/aphia.php?p=sourcedetails&id=349374 | 
                
                
                
                
            
                
                    | Planorbis bicarinatus Say, 1817
                        heterotypic synonym |  | 
                
                    
                        | Gepubliceerd in:Say, T. (1817). Conchology. - In: Nicholson, W.: American edition of the British Encyclopedia, or, dictionary of arts and sciences comprising an accurate and popular view of the present improved state of human knowledge. First Edition. A–3 – C–6 [= 1–20], pl. [1–4]. https://www.molluscabase.org/aphia.php?p=sourcedetails&id=297558 |