Thylacodes decussatus

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Thylacodes decussatus
Scientific classification
Kingdom:
Phylum:
Class:
(unranked):
Superfamily:
Family:
Genus:
Species:
T. decussatus
Binomial name
Thylacodes decussatus
(Gmelin, 1791)
Synonyms [1]
  • Serpula decussataGmelin, 1791

Thylacodes decussatus is a species of sea snail, a marine gastropod mollusk in the family Vermetidae, the worm snails or worm shells. This species was previously known as Serpulorbis decussatus. [1]

In biology, a species ( ) is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. Other ways of defining species include their karyotype, DNA sequence, morphology, behaviour or ecological niche. In addition, paleontologists use the concept of the chronospecies since fossil reproduction cannot be examined. While these definitions may seem adequate, when looked at more closely they represent problematic species concepts. For example, the boundaries between closely related species become unclear with hybridisation, in a species complex of hundreds of similar microspecies, and in a ring species. Also, among organisms that reproduce only asexually, the concept of a reproductive species breaks down, and each clone is potentially a microspecies.

Sea snail common name for snails that normally live in saltwater

Sea snail is a common name for snails that normally live in salt water, in other words marine gastropods. The taxonomic class Gastropoda also includes snails that live in other habitats, such as land snails and freshwater snails. Many species of sea snails are edible and exploited as food sources by humans.

Family is one of the eight major hierarcical taxonomic ranks in Linnaean taxonomy; it is classified between order and genus. A family may be divided into subfamilies, which are intermediate ranks between the ranks of family and genus. The official family names are Latin in origin; however, popular names are often used: for example, walnut trees and hickory trees belong to the family Juglandaceae, but that family is commonly referred to as being the "walnut family".

Contents

Distribution

Description

The maximum recorded shell length is 90 mm. [2]

Habitat

The minimum recorded depth for this species is 0 m; maximum recorded depth is 80 m. [2]

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References

  1. 1 2 Serpulorbis decussatus (Gmelin, 1791) . WoRMS (2010). Serpulorbis decussatus (Gmelin, 1791). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=419555 on 9 July 2010.
  2. 1 2 Welch J. J. (2010). "The "Island Rule" and Deep-Sea Gastropods: Re-Examining the Evidence". PLoS ONE 5(1): e8776. doi : 10.1371/journal.pone.0008776.