Polygyridae

Description: The gastropods (snails & slugs) are a group of molluscs that occupy marine, freshwater, and terrestrial environments. Most gastropods have a calcareous external shell (the snails). Some lack a shell completely, or have reduced internal shells (the slugs & sea slugs & pteropods). Most members of the Gastropoda are marine. Most marine snails are herbivores (algae grazers) or predators/carnivores. The shell shown above is a living polygyrid land snail - possibly Mesodon. Polygyrids are a group of pulmonates, which are air-breathing terrestrial gastropods. Some pulmonates lack external coiled shells - the slugs. Others have the same type of coiled, calcareous shell as freshwater and marine snails. Classification: Animalia, Mollusca, Gastropoda, Pulmonata, Polygyridae Locality: next to a Boggs Member outcrop at Rock Cut railroad cut, along Ohio Central Railroad tracks, ~southwest of Copeland Island & south-southeast of the town of Dresden, northern Muskingum County, eastern Ohio, USA (~~vicinity of 40° 04’ 24.41” North latitude, 81° 59’ 11.25” West longitude) More info. at: en.wikipedia.org/wiki/Polygyridae. Date: 15 April 2017, 12:29. Source: Polygyrid land snail (Rock Cut, Muskingum County, Ohio, USA) 3. Author: James St. John.

Description: Stenotrematini in Algonquin Provincial Park, Ontario, Canada. Date: 21 September 2019, 12:25. Source: Own work. Author: Ryan Hodnett. : This media file is part of an observation on iNaturalist:inaturalist.org/observations/46414668This tag does not indicate the copyright status of the attached work. A normal copyright tag is still required. See Commons:Licensing.

Description: The gastropods (snails & slugs) are a group of molluscs that occupy marine, freshwater, and terrestrial environments. Most gastropods have a calcareous external shell (the snails). Some lack a shell completely, or have reduced internal shells (the slugs & sea slugs & pteropods). Most members of the Gastropoda are marine. Most marine snails are herbivores (algae grazers) or predators/carnivores. The shell shown above is a living polygyrid land snail - possibly Mesodon. Polygyrids are a group of pulmonates, which are air-breathing terrestrial gastropods. Some pulmonates lack external coiled shells - the slugs. Others have the same type of coiled, calcareous shell as freshwater and marine snails. Classification: Animalia, Mollusca, Gastropoda, Pulmonata, Polygyridae Locality: next to a Boggs Member outcrop at Rock Cut railroad cut, along Ohio Central Railroad tracks, ~southwest of Copeland Island & south-southeast of the town of Dresden, northern Muskingum County, eastern Ohio, USA (~~vicinity of 40° 04’ 24.41” North latitude, 81° 59’ 11.25” West longitude) More info. at: en.wikipedia.org/wiki/Polygyridae. Date: 15 April 2017, 12:30. Source: Polygyrid land snail (Rock Cut, Muskingum County, Ohio, USA) 2. Author: James St. John.

Description: Ellis Lake Wetlands, Fairfield, Ohio. Date: 11 July 2015, 07:37. Source: Polygyrid Snail (Polygyridae). Author: Andrew C.

Description: The gastropods (snails & slugs) are a group of molluscs that occupy marine, freshwater, and terrestrial environments. Most gastropods have a calcareous external shell (the snails). Some lack a shell completely, or have reduced internal shells (the slugs & sea slugs & pteropods). Most members of the Gastropoda are marine. Most marine snails are herbivores (algae grazers) or predators/carnivores. The shell shown above is a living polygyrid land snail - possibly Mesodon. Polygyrids are a group of pulmonates, which are air-breathing terrestrial gastropods. Some pulmonates lack external coiled shells - the slugs. Others have the same type of coiled, calcareous shell as freshwater and marine snails. Classification: Animalia, Mollusca, Gastropoda, Pulmonata, Polygyridae Locality: next to a Boggs Member outcrop at Rock Cut railroad cut, along Ohio Central Railroad tracks, ~southwest of Copeland Island & south-southeast of the town of Dresden, northern Muskingum County, eastern Ohio, USA (~~vicinity of 40° 04’ 24.41” North latitude, 81° 59’ 11.25” West longitude) More info. at: en.wikipedia.org/wiki/Polygyridae. Date: 15 April 2017, 12:28. Source: Polygyrid land snail (Rock Cut, Muskingum County, Ohio, USA) 4. Author: James St. John.

Description: The gastropods (snails & slugs) are a group of molluscs that occupy marine, freshwater, and terrestrial environments. Most gastropods have a calcareous external shell (the snails). Some lack a shell completely, or have reduced internal shells (the slugs & sea slugs & pteropods). Most members of the Gastropoda are marine. Most marine snails are herbivores (algae grazers) or predators/carnivores. The shell shown above is a living polygyrid land snail - possibly Mesodon. Polygyrids are a group of pulmonates, which are air-breathing terrestrial gastropods. Some pulmonates lack external coiled shells - the slugs. Others have the same type of coiled, calcareous shell as freshwater and marine snails. Classification: Animalia, Mollusca, Gastropoda, Pulmonata, Polygyridae Locality: next to a Boggs Member outcrop at Rock Cut railroad cut, along Ohio Central Railroad tracks, ~southwest of Copeland Island & south-southeast of the town of Dresden, northern Muskingum County, eastern Ohio, USA (~~vicinity of 40° 04’ 24.41” North latitude, 81° 59’ 11.25” West longitude) More info. at: en.wikipedia.org/wiki/Polygyridae. Date: 15 April 2017, 12:30. Source: Polygyrid land snail (Rock Cut, Muskingum County, Ohio, USA) 1. Author: James St. John.

Description: The gastropods (snails & slugs) are a group of molluscs that occupy marine, freshwater, and terrestrial environments. Most gastropods have a calcareous external shell (the snails). Some lack a shell completely, or have reduced internal shells (the slugs & sea slugs & pteropods). Most members of the Gastropoda are marine. Most marine snails are herbivores (algae grazers) or predators/carnivores. The shell shown above is a living polygyrid land snail - possibly Mesodon. Polygyrids are a group of pulmonates, which are air-breathing terrestrial gastropods. Some pulmonates lack external coiled shells - the slugs. Others have the same type of coiled, calcareous shell as freshwater and marine snails. Classification: Animalia, Mollusca, Gastropoda, Pulmonata, Polygyridae Locality: next to a Boggs Member outcrop at Rock Cut railroad cut, along Ohio Central Railroad tracks, ~southwest of Copeland Island & south-southeast of the town of Dresden, northern Muskingum County, eastern Ohio, USA (~~vicinity of 40° 04’ 24.41” North latitude, 81° 59’ 11.25” West longitude) More info. at: en.wikipedia.org/wiki/Polygyridae. Date: 15 April 2017, 12:28. Source: Polygyrid land snail (Rock Cut, Muskingum County, Ohio, USA) 5. Author: James St. John.

Description: HSS. Date: 11 September 2018, 15:30. Source: Snail - Polygyridae family, Leesylvania State Park, Woodbridge, Virginia. Author: Judy Gallagher.

Description: The polygyrid land snail Stenotrema florida from Liberty County, Florida, 1964; with a close-up view of the periostracal "hairs" typical of the genus. (Snails about 13 mm in diameter, or 1/2 inch.). Date: 2008. Source: Own work. Author: Tim Ross.

Description: The polygyrid land snail Polygyra septemvolva volvoxis, about 12 mm in diameter (approx. 1/2 inch); Gulf County, Florida, USA; 1964. Date: January 2008. Source: Own work. Author: Tim Ross.

Description: English: The land snail, Xolotrema notata (syn. Triodopsis notata). Date: 1878. Source: Binney, William G. (1878). The Terrestrial Air-Breathing Mollusks of the United States and Adjacent Territories of North America. Vol. 5 (plates). Bull. Mus. Comparative Zool., Harvard. Plate 14. Scanned by Tim Ross in 2007. Author: William Greene Binney (1833-1909; U.S.A.).

Scientific nameInfoFieldMesodon bucklandi. Scientific name authorshipInfoField(Agassiz, 1833). Catalog numberInfoFieldFOS.293. Type statusInfoFieldSyntype. ClassInfoFieldActinopterygii. CountryInfoFieldAngleterre. State or province or cantonInfoFieldOxfordshire. LocalityInfoFieldStonesfield. PeriodInfoFieldJurassique. EpochInfoFieldBathonien. Other stratigraphic unitsInfoFieldStonesfield Slate, Oolithe de Stonesfield. Bibliographical referencesInfoFieldAgassiz, Louis, 1833-1843 "Recherches sur les Poissons fossiles" vol.II, Imprimerie de Petitpierre, Neuchâtel, p. 192, pl.72a, f. 15. CollectionInfoFieldPoissons Fossiles d'Agassiz. NotesInfoFieldLa figure a été modifiée, ou le spécimen a été abimé. InstitutionInfoField Natural history museum of Neuchâtel . . Native name: Muséum d'histoire naturelle de Neuchâtel. Location: Neuchâtel, Switzerland. Coordinates: 46° 59′ 35″ N, 6° 55′ 50″ E . Established: 1853. Web page: https://www.museum-neuchatel.ch/. Authority control: : Q3330885 VIAF: 168262758 ISNI: 0000 0001 2202 5629 LCCN: no95022783 WorldCat. institution QS:P195,Q3330885. Source urlInfoFieldMHNN. Permission licenseInfoField MUSÉUM D'HISTOIRE NATURELLE DE NEUCHÂTEL : This image is from the collection of the Muséum d'histoire naturelle de Neuchâtel and has been published on Wikimedia Commons as part of a cooperation with Wikimedia CH. Corrections and additional information are welcome. Les droits de cette photograpie appartiennent au Muséum d'histoire naturelle de Neuchâtel, et peuvent être réutilisés selon une licence CC-by-SA. L'image peut-être réutilisée avec la mention suivante: EN: CC-by-SA, Museum of Natural History, Neuchâtel / FR: CC-by-SA, Musée d'histoire naturelle de Neuchâtel :. Licensing[edit].mw-parser-output.responsive-license-cc{clear:both;text-align:center;box-sizing:border-box;width:100%;justify-content:space-around;align-items:center;margin:0.5em auto;background-color:#f9f9f9;border:2px solid #e0e0e0;border-spacing:8px;display:flex}.mw-parser-output.responsive-license-cc div{margin:4px}.mw-parser-output.rlicense-text div{margin:0.5em auto}@media screen and (max-width:640px){.mw-parser-output.responsive-license-cc{flex-flow:column}.mw-parser-output.rlicense-text{order:1}} This file is licensed under the Creative Commons Attribution-Share Alike 4.0 International license. You are free: to share – to copy, distribute and transmit the work to remix – to adapt the work Under the following conditions: attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.https://creativecommons.org/licenses/by-sa/4.0CC BY-SA 4.0 Creative Commons Attribution-Share Alike 4.0 truetrue

Description: The polygyrid land snail, Webbhelix multilineata (Say, 1821), or the "Striped Whitelip"; collected St. Louis Co., Missouri, USA, abt 1965, by Leslie Hubricht. Date: January 2008. Source: Own work. Author: Tim Ross.

Description: the land snail, Appalachina sayana. Date: original=1878; scan=2007. Source: Binney, William G. (1878). The Terrestrial Air-Breathing Mollusks of the United States and Adjacent Territories of North America. Vol. 5 (plates). Bull. Mus. Comparative Zool., Harvard. Plate 20. Author: William Greene Binney (1833-1909; U.S.A.), (scanned by Tim Ross).

Description: The polygyrid land snail Linisa tamaulipasensis from Terrell County, Texas, USA; col. by W. L. Pratt, 1964. (about 12.5 mm in diameter, or approx. 1/2 inch). Date: January 2008. Source: Own work. Author: Tim Ross.

Description: The polygyrid land snail Daedalochila uvulifera, about 11 mm in diameter (approx. 7/16 inches); Sarasota County, Florida, USA; 1967. Date: January 2008. Source: Own work. Author: Tim Ross.

Description: Mesodon thyroidus, White-lip Globe, 21 mm. SERC, Edgewater, Anne Arundel County, MD - June 2015. Photo by Robert Aguilar, Smithsonian Environmental Research Center. Verified by Aydin Örstan. Date: 19 March 2006, 22:27. Source: Mesodon thyroidus_SERC_2015_U_0816. Author: Smithsonian Environmental Research Center.

Description: Mesodon thyroidus, White-lip Globe, 21 mm. SERC, Edgewater, Anne Arundel County, MD - June 2015. Photo by Robert Aguilar, Smithsonian Environmental Research Center. Verified by Aydin Örstan. Date: 19 March 2006, 22:27. Source: Mesodon thyroidus_SERC_2015_A_0817. Author: Smithsonian Environmental Research Center.

Description: Mesodon thyroidus (Say, 1816) - white-lip globe snail shell (modern) from Ohio, USA. (umbilical view; ~2.5 cm across at its widest) The gastropods (snails & slugs) are a group of molluscs that occupy marine, freshwater, and terrestrial environments. Most gastropods have a calcareous external shell (the snails). Some lack a shell completely, or have reduced internal shells (the slugs & sea slugs & pteropods). Most members of the Gastropoda are marine. Most marine snails are herbivores (algae grazers) or predators/carnivores. The shell shown above is a white-lip globe snail - Mesodon thyroidus. Mesodon snails are a group of pulmonates, air-breathing terrestrial gastropods. Some pulmonates lack external coiled shells - the slugs. Others have the same type of coiled, calcareous shell as freshwater and marine snails. Classification: Animalia, Mollusca, Gastropoda, Pulmonata, Polygyridae Locality: southern banks of Lobdell Creek, just west of bridge at Lobdell Road-Battee Road intersection, northern St. Albans Township, west-central Licking county, central Ohio, USA (40° 06' 11.66" North latitude, 82° 36' 01.30" West longitude) More info. at: en.wikipedia.org/wiki/Mesodon_thyroidus and en.wikipedia.org/wiki/Mesodon and en.wikipedia.org/wiki/Polygyridae. Date: 6 December 2016, 01:14. Source: Mesodon thyroidus (white-lip globe snail shell) (Lobdell Creek, Licking County, Ohio, USA) 2. Author: James St. John.

Description: Mesodon thyroidus - white-lip globe snail shell (modern) from Ohio, USA. (apical view; ~2.5 cm across at its widest) The gastropods (snails & slugs) are a group of molluscs that occupy marine, freshwater, and terrestrial environments. Most gastropods have a calcareous external shell (the snails). Some lack a shell completely, or have reduced internal shells (the slugs & sea slugs & pteropods). Most members of the Gastropoda are marine. Most marine snails are herbivores (algae grazers) or predators/carnivores. The shell shown above is a white-lip globe snail - Mesodon thyroidus. Mesodon snails are a group of pulmonates, air-breathing terrestrial gastropods. Some pulmonates lack external coiled shells - the slugs. Others have the same type of coiled, calcareous shell as freshwater and marine snails. Classification: Animalia, Mollusca, Gastropoda, Pulmonata, Polygyridae Locality: southern banks of Lobdell Creek, just west of bridge at Lobdell Road-Battee Road intersection, northern St. Albans Township, west-central Licking county, central Ohio, USA (40° 06' 11.66" North latitude, 82° 36' 01.30" West longitude) More info. at: en.wikipedia.org/wiki/Mesodon_thyroidus and en.wikipedia.org/wiki/Polygyridae. Date: 6 December 2016, 01:12. Source: Mesodon thyroidus (white-lip globe snail shell) (Lobdell Creek, Licking County, Ohio, USA) 1. Author: James St. John.

Description: the land snail, Mesodon thyroidus. Date: original=1878; scan=2007. Source: Binney, William G. (1878). The Terrestrial Air-Breathing Mollusks of the United States and Adjacent Territories of North America. Vol. 5 (plates). Bull. Mus. Comparative Zool., Harvard. Plate 11. Author: William Greene Binney (1833-1909; U.S.A.), (scanned by Tim Ross).

Description: The polygyrid land snail Praticolella berlandieriana from vicinity of Austin, Texas, USA; abt 1905. Diameter about 10 mm (approx. 7/16 inch). Date: January 2008. Source: Own work. Author: Tim Ross. Other versions: Derivative works of this file: Sigmurethra various examples 1.jpg.

Description: The polygyrid land snail, Daedalochila hippocrepis, Comal Co. Texas, 1968. Date: 1968. Source: Own work. Author: Tim Ross.

Description: The polygyrid land snail Trilobopsis loricata, Alameda Co., California, USA. Snail about 5.5 mm or 1/4 inch in diameter. Date: January 2008. Source: Own work. Author: Tim Ross.