Conus purpurascens
Encyclopedia
Conus purpurascens is a species of sea snail
Sea snail
Sea snail is a common name for those snails that normally live in saltwater, marine gastropod molluscs....

, a marine gastropod mollusk in the family
Family (biology)
In biological classification, family is* a taxonomic rank. Other well-known ranks are life, domain, kingdom, phylum, class, order, genus, and species, with family fitting between order and genus. As for the other well-known ranks, there is the option of an immediately lower rank, indicated by the...

 Conidae, the cone snails
Conus
Conus is a large genus of small to large predatory sea snails, marine gastropod molluscs, with the common names of cone snails, cone shells or cones. This genus is placed in the subfamily Coninae within the family Conidae. Geologically speaking, the genus is known from the Eocene to the Recent ...

 and their allies.

Like all species within the genus Conus, these snails are predatory and venomous. They are capable of "stinging" humans, therefore live ones should be handled carefully or not at all. Conantokin-P is a toxin derived from the venom
Venom
Venom is the general term referring to any variety of toxins used by certain types of animals that inject it into their victims by the means of a bite or a sting...

 of Conus purpurascens.

In popular culture

The toxin
Toxin
A toxin is a poisonous substance produced within living cells or organisms; man-made substances created by artificial processes are thus excluded...

 of Conus purpurascens is mentioned in Michael Crichton
Michael Crichton
John Michael Crichton , best known as Michael Crichton, was an American best-selling author, producer, director, and screenwriter, best known for his work in the science fiction, medical fiction, and thriller genres. His books have sold over 200 million copies worldwide, and many have been adapted...

's novelThe Lost World
The Lost World
-Conan Doyle novel and adaptations:* The Lost World , a 1912 book* The Lost World , a silent film* The Lost World , set in Venezuela* The Lost World , set in Africa...

, as a powerful neurotoxin
Neurotoxin
A neurotoxin is a toxin that acts specifically on nerve cells , usually by interacting with membrane proteins such as ion channels. Some sources are more general, and define the effect of neurotoxins as occurring at nerve tissue...

. In the story the cone toxin is used in poisonous darts, which the characters use to defend themselves from dinosaurs. The novel says that the toxin is capable of killing an animal
Animal
Animals are a major group of multicellular, eukaryotic organisms of the kingdom Animalia or Metazoa. Their body plan eventually becomes fixed as they develop, although some undergo a process of metamorphosis later on in their life. Most animals are motile, meaning they can move spontaneously and...

 so fast that it dies before feeling the stinging sensation of the dart
Dart
-Dart:In popular culture* Dart , an Image Comics superhero* Dart Feld, the central character of the PlayStation RPG, The Legend of Dragoon* Wraith dart, an attack spacecraft on Stargate Atlantis....

.

External links

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