Drepanotrema sp., copyright Mil Marques.

Belongs within: Hygrophila.
Contains: Ancylini, Ferrissia, Planorbini, Helisomatini, Segmentina.

The Planorbidae are a diverse, cosmopolitan group of air-breathing freshwater snails. Members vary between the high-spired Miratestinae, planispiral Planorbinae and limpet-like Ancylinae.

<==Planorbidae [Ancylidae, Ancyloplanorbidae, Hydrophila, Planorbia, Planorbina, Wladislaviidae]
    |–Ancylinae [Ancylina] BR17
    |    |–Ancylini BR17
    |    `–Laevapicini [Gundlachiinae, Laevapecinae, Laevapicidae, Laevapicinae] BR17
    |         |–Laevapex Walker 1903 BR05
    |         |    |–*L. fuscus (Adams 1840) [=Ancylus fuscus] BR17
    |         |    `–L. fragilis B68
    |         `–Gundlachia Pfeiffer 1849 BR17, RGG06
    |              |–‘Ancylus’ radiatus Guilding 1829 (see below for synonymy) BR05
    |              |–G. californica C64
    |              |–G. lucasi Suter 1905 P61
    |              |–G. neozelanica Suter 1905 P61
    |              |–G. petterdi Johnston 1878 P79
    |              `–G. ticaga (Marcus & Marcus 1962) RGG06
    |–Miratestinae [Ferrissiidae, Ferrissiinae, Ferrissinae, Miratestidae, Miratestini] BR17
    |    |–Ferrissia BR05
    |    |–Miratesta Sarasin & Sarasin 1897 BR05
    |    |    `–*M. celebensis Sarasin & Sarasin 1897 BR17
    |    |–Ancylastrum Bourguignat 1853 [Ancylastridae, Ancylastrinae, Ancylastrini, Ancylastruminae] BR05
    |    |    `–*A. cumingianum (Bourguignat 1853) BR17 [=Ancylus cumingianus BR17, Ancylus (*Legrandia) cumingianus L79]
    |    |–Protancylus Sarasin & Sarasin 1897 [Protancylidae, Protancylinae] BR05
    |    |    `–*P. adhaerens Sarasin & Sarasin 1897 BR17
    |    |–Amerianna Strand 1928 [=Ameria Adams 1861; Amerianneae, Ameriannini] BR05
    |    |    `–*A. carinata (Adams 1861) [=Physa carinata, *Ameria carinata] BR17
    |    |–Patelloplanorbis Hubendick 1957 [Patelloplanorbidae] BR05
    |    |    `–*P. tigiensis Hubendick 1957 BR17
    |    |–Bayardella Burch 1977 BR17, BR05 [Bayardellini]
    |    |    `–*B. johni (Burch 1977) BR17 [=Plesiophysa (Bayardella) johni KKW12]
    |    |–Physastra Tapparone Canefri 1883 [Physastreae, Physastrinae] BR05
    |    |    |–*P. vestita (Tapparone Canefri 1883) [=Physa vestita] BR17
    |    |    |–P. oconnori (Cumber 1941) P61
    |    |    `–P. variabilis (Gray 1843) (see below for synonymy) P61
    |    `–Kincaidilla Hannibal 1912 PB27
    |         |–*K. fragilis [=Ancylus fragilis] PB27
    |         |–K. equeefensis (Walker 1924) [=Gundlachia equeefensis, Ancylus (Ferrissia) equeefensis] PB27
    |         |–K. farquhari (Walker 1924) [=Gundlachia farquhari] PB27
    |         `–K. lhotelleriei (Bourguignat in Walker 1914) [=Gundlachia lhotelleriei] PB27
    `–Planorbinae BR05
         |–Planorbini BR05
         |–Helisomatini BR17
         |–Segmentina BR05
         |–Camptoceras Benson 1843 BR05 [Camptocerateae, Camptoceratinae, Camptoceratini BR17, Camptocerinae]
         |    `–*C. terebra Benson 1843 BR17
         |–Planorbarius Duméril 1806 (see below for synonymy) BR05
         |    |–*P. corneus (Linnaeus 1758) BR17 (see below for synonymy)
         |    `–P. villatoyensis E99
         |–Neoplanorbini [Neoplanorbidae, Neoplanorbinae] BR17
         |    |–Amphigyra dalli (White 1883) TTE93
         |    |–Neoplanorbis Pilsbry 1906 BR05
         |    |    `–*N. tantillus Pilsbry 1906 BR17
         |    `–Payettia Dall 1924 [Payettiidae, Payettiinae, Payettinae] BR05
         |         `–*P. dalli (White 1882) [=Latia dalli] BR17
         `–Drepanotrema Crosse & Fischer 1880 BR05 [Drepanotrematinae, Drepanotrematini BR17, Drepanotremeae]
              |–*D. yzabalense (Crosse & Fischer 1879) [=Planorbis yzabalensis] BR17
              |–D. anatinum (d’Orbigny 1835) RGG06
              |–D. cimex (Moricand 1839) RGG06
              |–D. depressissimum (Moricand 1839) RGG06
              |–D. esperanzense (Tryon 1866) [=Planorbis esperanzensis] BR17
              |–D. heloicum (d’Orbigny 1835) RGG06
              |–D. kermatoides (d’Orbigny 1835) RGG06
              |–D. nordestense (Lucena 1953) [=Tropicorbis nordestensis] B59
              `–D. lucidum (Pfeiffer 1839) RGG06

Planorbidae incertae sedis:
  Antillorbis Harry & Hubendick 1963 RGG06
    `–A. nordestensis (Lucena 1954) RGG06
  Anisancylus Pilsbry 1924 RGG06
    `–A. obliquus (Broderip & Sowerby 1832) RGG06
  Hebetancylus Pilsbry 1913 RGG06
    `–H. moricandi (d’Orbigny 1837) RGG06
  Uncancylus Pilsbry 1913 RGG06
    `–U. concentricus (d’Orbigny 1835) RGG06
  Planorbella AG88
    |–*P. corpulenta (Say 1824) A79, P88 [=Planorbis corpulentus A79, Helisoma corpulentum C64]
    `–P. magnifica (Pilsbry 1903) [=Planorbis magnificus] AG88
  Isidorella Tate 1896 KKW12
    |–I. egregia (Preston 1906) [=Limnaea (Bulinus) egregia, Glyptophysa egregia] KKW12
    `–I. newcombi (Adams & Adams 1864) KKW12
  Anisopsis Sandberger 1875 TTE93, B91
    |–*A. calculus (Sandberger 1875) B91, TTE93
    `–A. cherusca Huckriede 1967 B91
  Palaeancylus radiatus Yen 1948 TTE93
  Australorbis R64
    |–A. glabratus R64
    `–A. odhner NG13
  Tropicorbis R64
    |–T. albicans R64
    `–T. obstructus R64

‘Ancylus’ radiatus Guilding 1829 [incl. *Gundlachia ancyliformis Pfeiffer 1850, A. havanensis Pfeiffer 1839] BR05

Physastra variabilis (Gray 1843) [incl. Isidora antipodea, P. lirata conferta, P. hochstetteri, P. lirata, P. tabulata moesta, P. novaezelandiae, P. tabulata] P61

Planorbarius Duméril 1806 [=Coretus Gray 1847; Coretina, Coretinae, Coretini, Planorbariinae, Planorbariini] BR05

*Planorbarius corneus (Linnaeus 1758) BR17 [=Helix cornea BR17, *Coretus corneus BR17, Planorbis corneus G40; incl. Helix nana G40, Planorbis purpureus G40, Planorbis similis G40]

*Type species of generic name indicated


[AG88] Adams, W. F., & A. G. Gerberich. 1988. Rediscovery of Planorbella magnifica (Pilsbry) in southeastern North Carolina. Nautilus 102 (3): 125–126.

[A79] Anonymous. 1879. Genus Planorbella Gabb. Journal of Conchology 2: 235.

[B59] Baker, H. B. 1959. Publications received: The Brazilian species of “Drepanotrema”. IV. V. VI. By W. Lobato Paraense & Newton Deslandes. Nautilus 72 (4): 148.

[B91] Bandel, K. 1991. Gastropods from brackish and fresh water of the Jurassic–Cretaceous transition (a systematic reevaluation). Berliner Geowissenschaftliche Abhandlungen, Reihe A 134: 9–55.

[B68] Beetle, D. E. 1968. Laevapex fragilis on the outer banks of North Carolina. Nautilus 81 (3): 107.

[BR05] Bouchet, P., & J.-P. Rocroi. 2005. Classification and nomenclator of gastropod families. Malacologia 47 (1–2): 1–397.

[BR17] Bouchet, P., J.-P. Rocroi, B. Hausdorf, A. Kaim, Y. Kano, A. Nützel, P. Parkhaev, M. Schrödl & E. E. Strong. 2017. Revised classification, nomenclator and typification of gastropod and monoplacophoran families. Malacologia 61 (1–2): 1–526.

[C64] Carpenter, P. P. 1864. Supplementary report on the present state of our knowledge with regard to the Mollusca of the west coast of North America. Report of the British Association for the Advancement of Science 33: 517–686.

[E99] Esu, D. 1999. Contribution to the knowledge of Neogene climate changes in western and central Europe by means of non-marine molluscs. In: J. Agustí, L. Rook & P. Andrews (eds) The Evolution of Neogene Terrestrial Ecosystems in Europe pp. 328–354. Cambridge University Press.

[G40] Gray, J. E. 1840. A Manual of the Land and Fresh-water Shells of the British Islands, with figures of each of the kinds. By William Turton, M.D. A new edition, thoroughly revised and much enlarged. Longman, Orme, Brown, Green, and Longmans: London.

[KKW12] Köhler, F., V. Kessner & C. Whisson. 2012. New records of non-marine, non-camaenid gastropods (Mollusca: Gastropoda) from islands off the Kimberley coast, Western Australia. Records of the Western Australian Museum 27 (1): 21–39.

[L79] Legrand, W. 1879. Notes on a few Tasmanian land and freshwater shells. Journal of Conchology 2: 95–96.

[NG13] Ni, X., D. L. Gebo, M. Dagosto, J. Meng, P. Tafforeau, J. J. Flynn & K. C. Beard. 2013. The oldest known primate skeleton and early haplorhine evolution. Nature 498: 60–64.

[P79] Petterd, W. F. 1879. List of the freshwater shells of Tasmania. Journal of Conchology 2: 80–88.

[PB27] Pilsbry, H. A., & J. Bequaert. 1927. The aquatic mollusks of the Belgian Congo, with a geographical and ecological account of Congo malacology. Bulletin of the American Museum of Natural History 53 (2): 69–602, pls 10–77.

[P88] Pip, E. 1988. Niche congruency of freshwater gastropods in central North America with respect to six water chemistry parameters. Nautilus 102 (2): 65–72.

[P61] Powell, A. W. B. 1961. Shells of New Zealand: An illustrated handbook 4th ed. Whitcombe and Tombs Limited: Christchurch.

[R64] Richards, C. S. 1964. Apertural lamellae as supporting structures in Australorbis glabratus. Nautilus 78 (2): 57–60.

[RGG06] Rumi, A., D. E. Gutiérrez Gregoric, V. Núñez, I. I. César, M. A. Roche, M. P. Tassara, S. M. Martín & M. F. López Armengol. 2006. Freshwater Gastropoda from Argentina: species richness, distribution patterns, and an evaluation of endangered species. Malacologia 49 (1): 189–208.

[TTE93] Tracey, S., J. A. Todd & D. H. Erwin. 1993. Mollusca: Gastropoda. In: Benton, M. J. (ed.) The Fossil Record 2 pp. 131–167. Chapman & Hall: London.

Last updated: 19 February 2022.

Leave a comment

Your email address will not be published. Required fields are marked *