Pyramidula pusilla 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 very small air-breathing land snail

Snail

Snail is a common name applied to most of the members of the molluscan class Gastropoda that have coiled shells in the adult stage. When the word is used in its most general sense, it includes sea snails, land snails and freshwater snails. The word snail without any qualifier is however more often...

, a terrestrial

Terrestrial animal

Terrestrial animals are animals that live predominantly or entirely on land , as compared with aquatic animals, which live predominantly or entirely in the water , or amphibians, which rely on a combination of aquatic and terrestrial habitats...

 pulmonate gastropod mollusk or micromollusk

Micromollusk

A micromollusk is a descriptive term for 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...

 in the family Pyramidulidae

Pyramidulidae

Pyramidulidae is a family of small air-breathing land snails, terrestrial pulmonate gastropod mollusks in the superfamily Pupilloidea.-Anatomy:In this family, the number of haploid chromosomes lies between 26 and 30 ....

.

Shell description

The width of the shell is up to 2.95 mm, the height is up to 2.25 mm.

Distribution

The geographical distribution of this species is Mediterranean and Alpine.

Western Europe:

• • Great Britain
  • Ireland

Central Europe:

• • Czech Republic
  • Slovakia

Mediterranean:

• • France - in Pyrenees
    Pyrenees
    The Pyrenees is a range of mountains in southwest Europe that forms a natural border between France and Spain...
    
    
  • Spain
  • Portugal

External links

• Pyramidula pusilla at AnimalBase