Nerita versicolor (four-toothed nerite snails) Bahamas

Description:

Description: Nerita versicolor Gmelin, 1791 - four-toothed nerite snails exposed in a rocky shore intertidal zone. These nerite snails are on an epikarstified aragonitic limestone surface in the intertidal zone. They are grazing on algal/bacterial films by scraping the rocks with their radulae. The limestone rocks are cross-bedded, aragonitic, calcarenitic eolianites, formed in a terrestrial, near-shore, wind-dominated, sand dune environment. Stratigraphy: North Point Member, Rice Bay Formation, middle Holocene, ~5300 years old Classification: Animalia, Mollusca, Gastropoda, Neritidae Locality: western rocky shoreline of North Point Peninsula, eastern margin of Graham's Harbour, northeastern San Salvador Island, eastern Bahamas. Date: 12 June 2008, 17:01. Source: Nerita versicolor (four-toothed nerite snails) in a rocky shore intertidal zone (San Salvador Island, Bahamas) 4. Author: James St. John.