James St. John|sourceurl=https://flickr.com/photos/47445767@N05/49767228282%7Carchive=%7Creviewdate=2020-04-14 02:59:38|reviewlicense=cc-by-2.0|reviewer=FlickreviewR 2
Wikimedia Commons
Summary[edit] Description: Conus spurius atlanticus Clench, 1942 - fragmentary alphabet cone snail shell, modern (latest Holocene). 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 conid gastropods (cone shells) are fascinating marine snails for a couple reasons - they have attractively-shaped, colorful shells and they are killers. The conids are predatory, as are many other marine snails, but they take down their prey in an unusual fashion. The radula of most snails is a mineralized or heavily sclerotized mass of small teeth that scrapes across a substrate during feeding. Conid snails have a toxoglossate radula - one that has been evolutionarily modified into tiny, unattached, toxin-bearing, harpoon-like darts that can be fired at prey. Each dart is an individual tooth. The nickname "killer snails" is well deserved (even people have been killed). Some species have incredibly powerful toxins, while in other species the toxin has little effect on humans. This fragmentary and beachworn alphabet cone snail shell is covered in tiny borings (click on the photo once or twice to zoom in). Classification: Animalia, Mollusca, Gastropoda, Neogastropoda, Conoidea, Conidae Locality: Lighthouse Point beach, southern shore of the eastern tip of Sanibel Island, Gulf of Mexico coast of southern Florida, USA More info. at: en.wikipedia.org/wiki/Conus. Date: 12 April 2020, 02:36. Source: Conus spurius atlanticus (alphabet cone snail shell) (Sanibel Island, Florida, USA) 2. Author: James St. John.
Summary[edit] Conus spurius Linnaeus, 1758 Source : Index Testarum Conchyliorum (1742) of Niccolò Gualtieri. fr:Conus spurius Licensing[edit] Public domainPublic domainfalsefalse. : This work is in the public domain in its country of origin and other countries and areas where the copyright term is the author's life plus 70 years or fewer. You must also include a United States public domain tag to indicate why this work is in the public domain in the United States. Note that a few countries have copyright terms longer than 70 years: Mexico has 100 years, Jamaica has 95 years, Colombia has 80 years, and Guatemala and Samoa have 75 years. This image may not be in the public domain in these countries, which moreover do not implement the rule of the shorter term. Côte d'Ivoire has a general copyright term of 99 years and Honduras has 75 years, but they do implement the rule of the shorter term. Copyright may extend on works created by French who died for France in World War II (more information), Russians who served in the Eastern Front of World War II (known as the Great Patriotic War in Russia) and posthumously rehabilitated victims of Soviet repressions (more information). This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights.. https://creativecommons.org/publicdomain/mark/1.0/PDMCreative Commons Public Domain Mark 1.0falsefalse