Arion sp. (roundback slugs) (Clay County, West Virginia, USA) 1 (30344403352)

Description:

Summary[edit] Description: Arion sp. - roundback slugs in West Virginia, USA. 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. Shown above is a pair of mating slugs. Individuals are hermaphroditic - each slug is both male and female. Mating involves the mutual transfer of sperm. Classification: Animalia, Mollusca, Gastropoda, Pulmonata, Arionidae Locality: western side of Rt. 16, ~1.5 road-miles south of the town of Clay, next to the Elk River, Clay County, central West Virginia, USA More info. at: en.wikipedia.org/wiki/Arionidae and en.wikipedia.org/wiki/Arion_(gastropod). Date: 13 October 2016, 12:51. Source: Arion sp. (roundback slugs) (Clay County, West Virginia, USA) 1. Author: James St. John.