Lyncina leucodon

Lyncina leucodon is a species of sea snail, a cowry, a marine gastropod mollusk in the family Cypraeidae, the cowries.[1]

Lyncina leucodon
Drawing of a top view of the shell of Lyncina leucodon
Scientific classification
Kingdom:
Phylum:
Class:
(unranked):
Superfamily:
Family:
Genus:
Species:
L. leucodon
Binomial name
Lyncina leucodon
(Broderip, 1832)
Synonyms[1]
  • Cypraea leucodon Broderip, 1828 (original combination)
  • Cypraea leucodon leucodon Broderip, 1828
  • Cypraea leucodon leucodon var. escotoi Poppe, 2004 (Unavailable name: established as a variety after 1960)

Description

The White-toothed Cowry was known from only two specimens until rather recently (one in the National Museum of London, England and one in the Harvard University Museum of Comparative Zoology). The distinctiveness of the shell was easily enough to consider it a new species. In the late 1960s and early 1970s the third and fourth specimens were found. By the 1980s, they were being found with regular frequency and were available on the market for about $5000. By 2000, they were common enough to be available for about $1500 in gem state and less than $1000 for lower quality specimens. The color of the White-toothed Cowry varies from a chocolate-brown to butterscotch with whitish spots of varying size and contrast. The dorsal mantle stripe is very distinctive to the species. A number of subspecies and forms have been described including: leucodon (pyriform nominate); angioyna (slight tooth differences); tenuidon (smaller, heavily spotted and rounder); and escotoi (small, dark and very round).

Distribution

gollark: Governments probably wouldn't unless they're being really experimental for some reason, yes, since unless they make themselves the only issuers they can't muck with the money supply all the time.
gollark: Proof of work is wildly wasteful, proof of stake is just built-in inequality, and I don't know of any saner ways.
gollark: My main problem with cryptocurrencies is the fact that they end up needing to replicate unreasonably large amounts of data everywhere, and allocation of coins is a hard problem without any reasonably good solutions.
gollark: You obviously run into the issue of "what if the key is leaked", though.
gollark: Hypothetically you could have a cryptocurrency where only the government can issue a coin - instead of mining it (proof of work), it would just be digitally signed by a government key.

References

  1. Lyncina leucodon (Broderip, 1832). Bouchet, P. (2010). Lyncina leucodon (Broderip, 1832). In: Bouchet, P.; Gofas, S.; Rosenberg, G. (2010) World Marine Mollusca database. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=458732 on 5 June 2010 .
  • Poppe G.T. (2004) Descriptions of spectacular new species from the Philippines (Gastropoda - Trochidae, Cypraeidae). Visaya 1(1): 4–19.


    This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.