Oliva sayana (lettered olive snail shells) (St. Thomas, Virgin Islands) 3

Description:

Description: English: Oliva sayana Ravenel, 1834 - lettered olive snail shells from the Virgin Islands. (apertural view) 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. Classification: Animalia, Mollusca, Gastropoda, Neogastropoda, Olividae Locality: Brewers Bay, St. Thomas, western Virgin Islands More info. at: en.wikipedia.org/wiki/Lettered_olive. Date: 29 October 2020, 13:33:01. Source: https://www.flickr.com/photos/47445767@N05/50632317292/. Author: James St. John.