''Tandonia'' is a

genus Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...

of air-breathing,

keel The keel is the bottom-most longitudinal structural element of a watercraft, important for stability. On some sailboats, it may have a fluid dynamics, hydrodynamic and counterbalancing purpose as well. The keel laying, laying of the keel is often ...

ed, land

slug Slug, or land slug, is a common name for any apparently shell-less Terrestrial mollusc, terrestrial gastropod mollusc. The word ''slug'' is also often used as part of the common name of any gastropod mollusc that has no shell, a very reduced ...

s. These are shell-less

terrestrial Terrestrial refers to things related to land or the planet Earth, as opposed to extraterrestrial. Terrestrial may also refer to: * Terrestrial animal, an animal that lives on land opposed to living in water, or sometimes an animal that lives on o ...

gastropod Gastropods (), commonly known as slugs and snails, belong to a large Taxonomy (biology), taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (). This class comprises snails and slugs from saltwater, freshwater, and fro ...

mollusk Mollusca is a phylum of protostomic invertebrate animals, whose members are known as molluscs or mollusks (). Around 76,000 extant species of molluscs are recognized, making it the second-largest animal phylum after Arthropoda. The ...

s in the family

Milacidae Milacidae is a family (biology), family of air-breathing, keel (slug), keeled, land slugs. These are shell-less terrestrial molluscs, terrestrial gastropod mollusks in the superfamily Parmacelloidea. This family has no subfamilies (according to ...

Distribution

The distribution of the genus ''Tandonia'' includes Europe to North Africa and Asia Minor. The largest number of species are in the southern

Alps The Alps () are some of the highest and most extensive mountain ranges in Europe, stretching approximately across eight Alpine countries (from west to east): Monaco, France, Switzerland, Italy, Liechtenstein, Germany, Austria and Slovenia. ...

Description

The slug's body is elongate, up to 100 mm in length, and usually with almost parallel sides. The posterior par is abruptly narrowed, the keel usually low and is restricted to the last section of the dorsum in some species, reaching the mantle margin in others.

Reproductive system The reproductive system of an organism, also known as the genital system, is the biological system made up of all the anatomical organs involved in sexual reproduction. Many non-living substances such as fluids, hormones, and pheromones are al ...

: The penis is usually short, the epiphallus is long. The retractor penis inserts at the boundary between the penis and epiphallus. The vas deferens of specific length opens into the posterior end of the epiphallus. The vaginal accessory glands (usually more than one) are of specific shapes, and are connected by ducts to the vagina or to the point where the vagina enters the atrium. The atrium is small and tubular, with no stimulator inside.

Spermatheca The spermatheca (pronounced : spermathecae ), also called ''receptaculum seminis'' (: ''receptacula seminis''), is an organ of the female reproductive tract in insects, e.g. ants, bees, some molluscs, Oligochaeta worms and certain other in ...

are of specific size, the spermathecal duct can be longer or shorter than the spermatheca.

Species

Within the genus ''Tandonia'' there are the following 29 species:"Species in genus ''Tandonia''"

=29 The equals sign (British English) or equal sign (American English), also known as the equality sign, is the mathematical symbol , which is used to indicate equality. In an equation it is placed between two expressions that have the same value, ...

AnimalBase AnimalBase is a project brought to life in 2004 and is maintained by the University of Göttingen, Germany. The goal of the AnimalBase project is to digitize early zoological literature, provide copyright-free open access to zoological works, and p ...

, accessed 26 August 2010. * ''

Tandonia albanica ''Tandonia'' is a genus of air-breathing, keeled, land slugs. These are shell-less terrestrial gastropod mollusks in the family Milacidae. Distribution The distribution of the genus ''Tandonia'' includes Europe to North Africa and Asia Minor. ...

'' (Soós, 1924) * ''

Tandonia baldensis ''Tandonia'' is a genus of air-breathing, keeled, land slugs. These are shell-less terrestrial gastropod mollusks in the family Milacidae. Distribution The distribution of the genus ''Tandonia'' includes Europe to North Africa and Asia Minor. ...

'' (Simroth, 1910) * ''

Tandonia bosnensis ''Tandonia'' is a genus of air-breathing, keeled, land slugs. These are shell-less terrestrial gastropod mollusks in the family Milacidae. Distribution The distribution of the genus ''Tandonia'' includes Europe to North Africa and Asia Minor. ...

'' Wiktor, 1986 * ''

Tandonia budapestensis ''Tandonia budapestensis'' is a species of air-breathing, keel (slug), keeled, land slug, a shell-less terrestrial molluscs, terrestrial gastropod mollusks in the family Milacidae.Marshall, B. (2014). Tandonia budapestensis (Hazay, 1880). Accesse ...

'' (Hazay, 1880) * ''

Tandonia cavicola ''Tandonia'' is a genus of air-breathing, keeled, land slugs. These are shell-less terrestrial gastropod mollusks in the family Milacidae. Distribution The distribution of the genus ''Tandonia'' includes Europe to North Africa and Asia Minor. ...

'' (Simroth, 1916) * ''

Tandonia cretica ''Tandonia'' is a genus of air-breathing, keeled, land slugs. These are shell-less terrestrial gastropod mollusks in the family Milacidae. Distribution The distribution of the genus ''Tandonia'' includes Europe to North Africa and Asia Minor. ...

'' (Simroth, 1885) * ''

Tandonia cristata ''Tandonia'' is a genus of air-breathing, keeled, land slugs. These are shell-less terrestrial gastropod mollusks in the family Milacidae. Distribution The distribution of the genus ''Tandonia'' includes Europe to North Africa and Asia Minor. ...

'' (Kaleniczenko, 1851) * ''

Tandonia croatica ''Tandonia'' is a genus of air-breathing, keel (slug), keeled, land slugs. These are shell-less terrestrial molluscs, terrestrial gastropod mollusks in the family Milacidae. Distribution The distribution of the genus ''Tandonia'' includes Euro ...

'' (Wagner, 1929) * ''

Tandonia dalmatina ''Tandonia'' is a genus of air-breathing, keeled, land slugs. These are shell-less terrestrial gastropod mollusks in the family Milacidae. Distribution The distribution of the genus ''Tandonia'' includes Europe to North Africa and Asia Minor. ...

'' (Simroth, 1900) * ''

Tandonia ehrmanni ''Tandonia'' is a genus of air-breathing, keeled, land slugs. These are shell-less terrestrial gastropod mollusks in the family Milacidae. Distribution The distribution of the genus ''Tandonia'' includes Europe to North Africa and Asia Minor. ...

'' (Simroth, 1910) * ''

Tandonia fejervaryi ''Tandonia'' is a genus of air-breathing, keeled, land slugs. These are shell-less terrestrial gastropod mollusks in the family Milacidae. Distribution The distribution of the genus ''Tandonia'' includes Europe to North Africa and Asia Minor. ...

'' (Wagner, 1929) * ''

Tandonia jablanacensis ''Tandonia'' is a genus of air-breathing, keeled, land slugs. These are shell-less terrestrial gastropod mollusks in the family Milacidae. Distribution The distribution of the genus ''Tandonia'' includes Europe to North Africa and Asia Minor. ...

'' (Wagner, 1930) * ''

Tandonia kusceri ''Tandonia kusceri'' is a species of slug belonging to the family Milacidae. Identification ''Tandonia kusceri'' has the long keel continuing up to the mantle that is typical of the Milacidae and is pale pinky brown, usually with small black s ...

'' (Wagner, 1931) * ''

Tandonia lagostana ''Tandonia lagostana'' is a species of keeled slug in the family Milacidae. It is endemic to the island of Lastovo in Croatia where it as last collected in 1940. There is an additional record from the Montenegro , image_flag ...

'' (Wagner, 1940) * ''

Tandonia macedonica ''Tandonia'' is a genus of air-breathing, keeled, land slugs. These are shell-less terrestrial gastropod mollusks in the family Milacidae. Distribution The distribution of the genus ''Tandonia'' includes Europe to North Africa and Asia Minor. ...

'' (Rähle, 1974) * ''

Tandonia melanica ''Tandonia'' is a genus of air-breathing, keeled, land slugs. These are shell-less terrestrial gastropod mollusks in the family Milacidae. Distribution The distribution of the genus ''Tandonia'' includes Europe to North Africa and Asia Minor. ...

'' Wiktor, 1986 * ''

Tandonia nigra ''Tandonia nigra'' is a species of air-breathing land slug, a terrestrial molluscs, terrestrial pulmonate gastropod mollusk in the family Milacidae. Distribution This slug species is Endemism, endemic to north List of non-marine molluscs of ...

'' (Pfeiffer, 1894) * '' Tandonia pageti'' (Forcart, 1972) * '' Tandonia pinteri'' (Wiktor, 1975) * ''

Tandonia piriniana ''Tandonia'' is a genus of air-breathing, keeled, land slugs. These are shell-less terrestrial gastropod mollusks in the family Milacidae. Distribution The distribution of the genus ''Tandonia'' includes Europe to North Africa and Asia Minor. ...

'' Wiktor, 1983 * ''

Tandonia rara ''Tandonia'' is a genus of air-breathing, keeled, land slugs. These are shell-less terrestrial gastropod mollusks in the family Milacidae. Distribution The distribution of the genus ''Tandonia'' includes Europe to North Africa and Asia Minor. ...

'' Wiktor, 1996 * ''

Tandonia retowskii ''Tandonia'' is a genus of air-breathing, keel (slug), keeled, land slugs. These are shell-less terrestrial molluscs, terrestrial gastropod mollusks in the family Milacidae. Distribution The distribution of the genus ''Tandonia'' includes Euro ...

'' (Böttger, 1882) * ''

Tandonia reuleauxi ''Tandonia'' is a genus of air-breathing, keeled, land slugs. These are shell-less terrestrial gastropod mollusks in the family Milacidae. Distribution The distribution of the genus ''Tandonia'' includes Europe to North Africa and Asia Minor. ...

'' (Clessin, 1887) * ''

Tandonia robici ''Tandonia'' is a genus of air-breathing, keeled, land slugs. These are shell-less terrestrial gastropod mollusks in the family Milacidae. Distribution The distribution of the genus ''Tandonia'' includes Europe to North Africa and Asia Minor. ...

'' (Simroth, 1885) * '' Tandonia rustica'' (Millet, 1843) - type species * '' Tandonia samsunensis'' (Forcart, 1942) * ''

Tandonia serbica ''Tandonia'' is a genus of air-breathing, keeled, land slugs. These are shell-less terrestrial gastropod mollusks in the family Milacidae. Distribution The distribution of the genus ''Tandonia'' includes Europe to North Africa and Asia Minor. ...

'' (Wagner, 1931) * ''

Tandonia sowerbyi ''Tandonia sowerbyi'' is a species of air-breathing, keeled, land slug, a shell-less terrestrial gastropod mollusk in the family Milacidae. Description This is a keeled slug attained in length. Habitat This slug occurs in open habitats such as ...

'' (Férussac, 1823) * ''

Tandonia totevi ''Tandonia'' is a genus of air-breathing, keeled, land slugs. These are shell-less terrestrial gastropod mollusks in the family Milacidae. Distribution The distribution of the genus ''Tandonia'' includes Europe to North Africa and Asia Minor. ...

'' (Wiktor, 1975)

References

This article incorporates public domain text from the reference.

"Genus summary for ''Tandonia''"

, last modified 23 May 2010, accessed 26 August 2010. {{Taxonbar, from=Q147313 Milacidae Taxonomy articles created by Polbot