Pyramidulidae
Encyclopedia
Pyramidulidae is a family
of small air-breathing land snail
s, terrestrial
pulmonate gastropod mollusks in the superfamily Pupilloidea
.
s lies between 26 and 30 (according to the values in this table).
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 Pupilloidea
Pupilloidea
The Pupilloidea are a superfamily of air-breathing land snails, terrestrial gastropod mollusks in the informal group Orthurethra.-Taxonomy:This superfamily contains the following families:*Family Pupillidae*Family Argnidae*Family Chondrinidae...
.
Anatomy
In this family, the number of haploid chromosomeChromosome
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 30 (according to the values in this table).
Genera
Genera within the family Pyramidulidae include:- Pyramidula Fitzinger, 1833 - type genusType genusIn biological classification, a type genus is a representative genus, as with regard to a biological family. The term and concept is used much more often and much more formally in zoology than it is in botany, and the definition is dependent on the nomenclatural Code that applies:* In zoological...