Vitrinidae is a 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...

 of small, air-breathing land snail

Land snail

A land snail is any of the many species of snail that live on land, as opposed to those that live in salt water and fresh water. Land snails are terrestrial gastropod mollusks that have shells, It is not always an easy matter to say which species are terrestrial, because some are more or less...

s, 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 mollusks in the superfamily Limacoidea

Limacoidea

Limacoidea is a taxonomic superfamily of medium-sized to large, air-breathing land slugs and snails. They are terrestrial pulmonate gastropod mollusks in the infraorder Stylommatophora ....

 (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005

Taxonomy of the Gastropoda (Bouchet & Rocroi, 2005)

The taxonomy of the Gastropoda as it was revised by Philippe Bouchet and Jean-Pierre Rocroi is currently the most up-to-date overall system for classifying gastropod mollusks...

).

The family Vitrinidae has no subfamilies (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005

Taxonomy of the Gastropoda (Bouchet & Rocroi, 2005)

The taxonomy of the Gastropoda as it was revised by Philippe Bouchet and Jean-Pierre Rocroi is currently the most up-to-date overall system for classifying gastropod mollusks...

).

Distribution

The distribution of the Vitrinidae includes the Nearctic

Nearctic

The Nearctic is one of the eight terrestrial ecozones dividing the Earth's land surface.The Nearctic ecozone covers most of North America, including Greenland and the highlands of Mexico...

, western Palearctic

Palearctic

The Palearctic or Palaearctic is one of the eight ecozones dividing the Earth's surface.Physically, the Palearctic is the largest ecozone...

, and eastern Palearctic, Ethiopian

Ethiopia

Ethiopia , officially known as the Federal Democratic Republic of Ethiopia, is a country located in the Horn of Africa. It is the second-most populous nation in Africa, with over 82 million inhabitants, and the tenth-largest by area, occupying 1,100,000 km2...

, and also Hawaii.

Anatomy

Snails in this family make and use love darts made of chitin

Chitin

Chitin n is a long-chain polymer of a N-acetylglucosamine, a derivative of glucose, and is found in many places throughout the natural world...

.

In this family, the number of haploid chromosome

Chromosome

A chromosome is an organized structure of DNA and protein found in cells. It is a single piece of coiled DNA containing many genes, regulatory elements and other nucleotide sequences. Chromosomes also contain DNA-bound proteins, which serve to package the DNA and control its functions.Chromosomes...

s lies between 26 and 35 (according to the values in this table).

Genera

Genera in the family Vitrinidae include:

• Eucobresia
  Eucobresia
  Eucobresia is a genus of air-breathing land snails or semi-slugs, terrestrial pulmonate gastropod mollusks in the family Vitrinidae, the glass snails.-Species:Species within the genus Eucobresia include:* Eucobresia diaphana...
  
  
• Phenacolimax
  Phenacolimax
  Phenacolimax is a genus of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Vitrinidae.-Species:The genus Phenacolimax includes the following species:* Phenacolimax atlantica...
  
  
• Semilimax
  Semilimax
  Semilimax is a genus of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Vitrinidae.-Species:The genus Semilimax includes the following species:* Semilimax carinthiacus...
  
  
• Vitrina
  Vitrina
  Vitrina is genus of small air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Vitrinidae, the glass snails.-Species:Species with the genus Vitrina include:* Vitrina angelicae Beck, 1837...
  
  

Cladogram

A cladogram

Cladogram

A cladogram is a diagram used in cladistics which shows ancestral relations between organisms, to represent the evolutionary tree of life. Although traditionally such cladograms were generated largely on the basis of morphological characters, DNA and RNA sequencing data and computational...

 showing the phylogenic relationships of this family to other families within the limacoid clade

Limacoid clade

The limacoid clade is a taxonomic clade of air-breathing land snails, semislugs and slugs, terrestrial pulmonate gastropod molluscs in the informal group Sigmurethra.- Distribution :...

: