Cerithiella amblytera

Cerithiella amblytera
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
(unranked):	clade Caenogastropoda ; clade Hypsogastropoda ; informal group Ptenoglossa
Superfamily:	Triphoroidea
Family:	Newtoniellidae
Genus:	Cerithiella
Species:	C. amblytera
Binomial name
	Cerithiella amblytera; (Watson, 1880)
Synonyms
	Cerithiopsis amblyteraWatson, 1880; Cerithiopsis amblytera var. attenuataLocard, 1897; Cerithium (Bittium) amblyterumWatson, 1880 (basionym); Cerithium (Bittium) mamillanumWatson, 1880;

Last updated March 18, 2019

Cerithiella amblytera is a species of very small sea snail, a marine gastropod mollusk in the family Newtoniellidae. It was first described as Cerithium (Bittium) amblyterum 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 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 is a family of minute sea snails, marine gastropod mollusks or micromollusks in the superfamily Triphoroidea. It contains the following subfamilies :

Description

The maximum recorded shell length is 6.3 mm.^[2]

Distribution

This species occurs in the Canary Islands and the Cape Verde archipelago.^[1]

The Canary Islands is a Spanish archipelago and the southernmost autonomous community of Spain located in the Atlantic Ocean, 100 kilometres west of Morocco at the closest point. The Canary Islands, which are also known informally as the Canaries, are among the outermost regions (OMR) of the European Union proper. It is also one of the eight regions with special consideration of historical nationality recognized as such by the Spanish Government. The Canary Islands belong to the African Plate like the Spanish cities of Ceuta and Melilla, the two on the African mainland.

Cape Verde or Cabo Verde, officially the Republic of Cabo Verde, is an island country spanning an archipelago of 10 volcanic islands in the central Atlantic Ocean. It forms part of the Macaronesia ecoregion, along with the Azores, Canary Islands, Madeira, and the Savage Isles. In ancient times these islands were referred to as "the Islands of the Blessed" or the "Fortunate Isles". Located 570 kilometres (350 mi) west of the Cape Verde Peninsula off the coast of Northwest Africa, the islands cover a combined area of slightly over 4,000 square kilometres (1,500 sq mi).

Habitat

Minimum recorded depth is 960 m.^[2] Maximum recorded depth is 1234 m.^[2]

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References

1 2 Cerithiella amblytera (R. B. Watson, 1880) . Retrieved through: World Register of Marine Species on 17 December 2018.
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.

Bouchet P. & Warén A. (1993). Revision of the Northeast Atlantic bathyal and abyssal Mesogastropoda. Bollettino Malacologico supplemento 3: 579-840
Gofas, S.; Le Renard, J.; Bouchet, P. (2001). Mollusca, in: Costello, M.J. et al. (Ed.) (2001). European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification. Collection Patrimoines Naturels, 50: pp. 180–213 (
Rolán E., 2005. Malacological Fauna From The Cape Verde Archipelago. Part 1, Polyplacophora and Gastropoda.

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[WoRMS-1] 1 2 Cerithiella amblytera (R. B. Watson, 1880) . Retrieved through: World Register of Marine Species on 17 December 2018.

[Welch_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.