Summary[edit] Description: Guildfordia yoka Jousseaume, 1888 - yoka star turban snail shell, umbilical view (8.3 cm across), modern (latest Holocene). The turbinids are common, tropical, herbivorous snails. One of the more visually intriguing turbinids is the star turban. This snail tends to inhabit unconsolidated, fine-grained substrates in moderately deep, low-energy settings. The long spines projecting from the final whorl's keel are throught to help prevent the snail from sinking (a common problem among epifaunal, benthic invertebrates throughout geologic history) and to help prevent predators from easily flipping the shell over. Classification: Animalia, Mollusca, Gastropoda, Archaeogastropoda, Trochoidea, Turbinidae 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. Some info. from Morris & Clench (1975), Harasewych & Alcosser (1991), and Hill (1996). Date: 5 November 2014, 01:17. Source: Guildfordia yoka (yoka star turban snail) 2. Author: James St. John.
Summary[edit] Description: Guildfordia yoka Jousseaume, 1888 - yoka star turban snail shell, apical view (8.3 cm across), modern (latest Holocene). The turbinids are common, tropical, herbivorous snails. One of the more visually intriguing turbinids is the star turban. This snail tends to inhabit unconsolidated, fine-grained substrates in moderately deep, low-energy settings. The long spines projecting from the final whorl's keel are throught to help prevent the snail from sinking (a common problem among epifaunal, benthic invertebrates throughout geologic history) and to help prevent predators from easily flipping the shell over. Classification: Animalia, Mollusca, Gastropoda, Archaeogastropoda, Trochoidea, Turbinidae 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. Some info. from Morris & Clench (1975), Harasewych & Alcosser (1991), and Hill (1996). Date: 5 November 2014, 01:17. Source: Guildfordia yoka (yoka star turban snail) 1. Author: James St. John.
Image description[edit] Description: English: The shell of a deep water sea snail in the genus Guildfordia and the family Turbinidae. This is presumably Guildfordia yoka. Date: 26 July 2006. Source: This file is lacking source information. Please edit this file's description and provide a source. Author: User:Pet.