Mesodon thyroidus

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).