Boreocingula globulus

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Boreocingula globulus
Scientific classification
Kingdom:
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(unranked):
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Species:
B. globulus
Binomial name
Boreocingula globulus
(Møller, 1842)
Synonyms [1]

Cingula globulus
Onoba globulus

Boreocingula globulus is a species of minute sea snail, a marine gastropod mollusk or micromollusk in the family Rissoidae. [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.

Micromollusk

A micromollusk is a shelled mollusk which is extremely small, even at full adult size. The word is usually, but not exclusively, applied to marine mollusks, although in addition, numerous species of land snails and freshwater mollusks also reach adult size at very small dimensions.

Contents

Distribution

Description

The maximum recorded shell length is 3.5 mm. [2]

Habitat

Minimum recorded depth is 10 m. [2] Maximum recorded depth is 450 m. [2]

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References

  1. 1 2 Boreocingula globulus (Moller, 1842) . Gofas, S. (2009). Boreocingula globulus (Moller, 1842). In: Bouchet, P.; Gofas, S.; Rosenberg, G. World Marine Mollusca database. Accessed through the World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=146725 on 9 August 2010.
  2. 1 2 3 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.