Limacidae
Encyclopedia
Limacidae, common name
Common name
A common name of a taxon or organism is a name in general use within a community; it is often contrasted with the scientific name for the same organism...

 the keelback slugs, are a taxonomic 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 medium-sized to very large, air-breathing land slug
Slug
Slug is a common name that is normally applied to any gastropod mollusc that lacks a shell, has a very reduced shell, or has a small internal shell...

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 molluscs 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 ....

.

Distribution

Distribution of Limacidae include 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...

.

There are 28 species Limacidae in Russia and adjacent countries.

Anatomy

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 21 and 25 and also lies between 31 and 35 (according to the values in this table).

2002 taxonomy

Zhiltsov & Schileyko (2002) have elevated subfamily Bielziinae to family level Bielziidae based on the morphology of reproductive system
Reproductive system of gastropods
The reproductive system of gastropods varies greatly from one group to another within this very large and diverse taxonomic class of animals...

 of Bielzia coerulans
Bielzia coerulans
Bielzia coerulans, commonly known as the Carpathian blue slug or simply the blue slug, is a species of very large land slug, a terrestrial pulmonate gastropod in the family Limacidae, the keelback slugs.- Taxonomy :...

.

2005 taxonomy

The following two subfamilies have been recognized in the taxonomy of 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...

:
  • subfamily Limacinae Lamarck, 1801 - synonyms: Limacopsidae Gerhardt, 1935; Bielziinae I. M. Likharev & Wiktor, 1980
  • subfamily Eumilacinae I. M. Likharev & Wiktor, 1980

Genera

Genera in the family Limacidae include:

subfamily Limacinae
  • Limax
    Limax
    Limax is a genus of air-breathing land slugs, terrestrial pulmonate gastropod mollusks in the family Limacidae.The generic name Limax literally means "slug"....

    Linnaeus, 1758 - type genus of the family Limacidae
    • subgenus Limacus
      Limacus
      Limacus is a subgenus of air-breathing land slugs, terrestrial pulmonate gastropod mollusks in the family Limacidae, the keelback slugs.Limacus is considered as a subgenus of the genus Limax.-Species:Species within this subgenus include:...

      Lehmann, 1864
  • Bielzia Clessin, 1887 - with the only species Bielzia coerulans
    Bielzia coerulans
    Bielzia coerulans, commonly known as the Carpathian blue slug or simply the blue slug, is a species of very large land slug, a terrestrial pulmonate gastropod in the family Limacidae, the keelback slugs.- Taxonomy :...

    M. Bielz, 1851. Some authors, for example Russian malacologists, classify genus Bielzia within separate family Limacopsidae.
  • Caspilimax P. Hesse, 1926
  • Caucasolimax Likharev et Wiktor, 1980
  • Gigantomilax O. Boettger, 1883
    • Gigantomilax csikii Soós, 1924
    • Gigantomilax lederi (Boettger, 1883)
    • Gigantomilax majoricensis (Heynemann, 1863)
  • Lehmannia
    Lehmannia
    Lehmannia is a genus of air-breathing land slugs, terrestrial pulmonate gastropod mollusks in the family Limacidae.- Species :This genus contains the following species:* Lehmannia brunneri Lehmannia is a genus of air-breathing land slugs, terrestrial pulmonate gastropod mollusks in the family...

    Heynemann, 1862
  • Limacopsis Simroth, 1888
  • Malacolimax
    Malacolimax
    Malacolimax is a genus of air-breathing land slugs, terrestrial pulmonate gastropod mollusks in the family Limacidae, the keelback slugs.-Species:Species within the genus Malacolimax include:* Malacolimax mrazeki...

    Malm, 1868
  • Turcomilax Simroth, 1901


subfamily Eumilacinae
  • Eumilax O. Boettger, 1881 - type genus of the subfamily Eumilacinae
    • Eumilax brandti (Martens, 1880)
  • Metalimax Simroth, 1896

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 :...

:

Ecology

Parasites of slugs in this family include larva
Larva
A larva is a distinct juvenile form many animals undergo before metamorphosis into adults. Animals with indirect development such as insects, amphibians, or cnidarians typically have a larval phase of their life cycle...

e of the marsh flies Sciomyzidae
Sciomyzidae
The family Sciomyzidae belongs to the typical flies of the order Diptera. They are commonly called marsh flies, and in some cases snail-killing flies due to the food of their larvae....

, and others.

External links

  • Slugs of Florida on the UF
    University of Florida
    The University of Florida is an American public land-grant, sea-grant, and space-grant research university located on a campus in Gainesville, Florida. The university traces its historical origins to 1853, and has operated continuously on its present Gainesville campus since September 1906...

     / IFAS
    Institute of Food and Agricultural Sciences
    The University of Florida’s Institute of Food and Agricultural Sciences is a federal-state-county partnership dedicated to developing knowledge in agriculture, human and natural resources, and the life sciences, and enhancing and sustaining the quality of human life by making that information...

    Featured Creatures Web site
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