Cerithiella astrolabiensis

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Cerithiella astrolabiensis
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
(unranked):clade Caenogastropoda
clade Hypsogastropoda
informal group Ptenoglossa
Superfamily: Newtoniellidae
Family: Triphoridae
Genus: Cerithiella
Species:C. astrolabiensis
Binomial name
Cerithiella astrolabiensis
(Strebel, 1908)
Synonyms
  • Bittium astrolabiensisStrebel, 1908 (original combination)
  • Cerithiella similisThiele, 1912

Cerithiella astrolabiensis is a species of very small sea snail, a marine gastropod mollusk in the family Newtoniellidae. It was described by Watson in 1880. [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.

Newtoniellidae family of molluscs

Newtoniellidae is a family of minute sea snails, marine gastropod mollusks or micromollusks in the superfamily Triphoroidea. It contains the following subfamilies :

Contents

Description

The maximum recorded shell length is 11.5 mm. [2]

Habitat

Minimum recorded depth is 95 m. [2] Maximum recorded depth is 298 m. [2]

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References

  1. ↑ Cerithiella astrolabiensis at World Register of Marine Species.
  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.


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