Odostomia acuta
Encyclopedia
Odostomia acuta is a species
Species
In biology, a species is one of the basic units of biological classification and a taxonomic rank. A species is often defined as a group of organisms capable of interbreeding and producing fertile offspring. While in many cases this definition is adequate, more precise or differing measures are...

 of sea snail
Sea snail
Sea snail is a common name for those snails that normally live in saltwater, marine gastropod molluscs....

, a marine
Marine (ocean)
Marine is an umbrella term. As an adjective it is usually applicable to things relating to the sea or ocean, such as marine biology, marine ecology and marine geology...

 gastropod mollusk in the family
Family (biology)
In biological classification, family is* a taxonomic rank. Other well-known ranks are life, domain, kingdom, phylum, class, order, genus, and species, with family fitting between order and genus. As for the other well-known ranks, there is the option of an immediately lower rank, indicated by the...

 Pyramidellidae
Pyramidellidae
Pyramidellidae, common name the pyram family, or pyramid shells, is a voluminous taxonomic family of mostly small and minute ectoparasitic sea snails, marine heterobranch gastropod molluscs or micromolluscs....

, the pyrams and their allies.

Description

The shell is rather solid, but semitransparent and lustrous, with microscopic close spiral striae, and still more minute, flexuous, crowded growthlines. The shell is whitish with a tinge of flesh-color. The are six whorls
Whorl (mollusc)
A whorl is a single, complete 360° revolution or turn in the spiral growth of a mollusc shell. A spiral configuration of the shell is found in of numerous gastropods, but it is also found in shelled cephalopods including Nautilus, Spirula and the large extinct subclass of cephalopods known as the...

 besides the embryonic ones. The periphery is obtusely keeled. The umbilicus is conspicuous but small. The tooth is strong and prominent. The outer lip
Lip (gastropod)
In the shell of a gastropod mollusk , the margin of the aperture is called the lip or the peristome. In other words, this is a term used to describe part of gastropod shell anatomy....

is occasionally striate within.

Distribution

This species occurs in the following locations:
  • Angola
  • Atlantic Europe
  • Azores Exclusive Economic Zone
  • Belgian Exclusive Economic Zone
  • European waters (ERMS scope)
  • Greek Exclusive Economic Zone
  • Irish Exclusive economic Zone
  • Mediterranean Sea
  • Morocco
  • Portugese Exclusive Economic Zone
  • Spanish Exclusive Economic Zone
  • United Kingdom Exclusive Economic Zone
  • Wimereux

External links

The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
 
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