''Atypus muralis'' is a

mygalomorph The Mygalomorphae, or mygalomorphs, are an infraorder of spiders, and comprise one of three major groups of living spiders with over 3000 species, found on all continents except Antarctica. Many members are known as trapdoor spiders due to the ...

spider from

Central Europe Central Europe is an area of Europe between Western Europe and Eastern Europe, based on a common historical, social and cultural identity. The Thirty Years' War (1618–1648) between Catholicism and Protestantism significantly shaped the area' ...

Turkmenistan Turkmenistan ( or ; tk, Türkmenistan / Түркменистан, ) is a country located in Central Asia, bordered by Kazakhstan to the northwest, Uzbekistan to the north, east and northeast, Afghanistan to the southeast, Iran to the sout ...

. It is very similar to ''

Atypus piceus ''Atypus piceus'' is a mygalomorph spider of the family Atypidae. It occurs in Europe to Moldavia, and Iran and is the type species of the genus ''Atypus''. Description Males are about long without chelicerae, females up to . Males are of a dee ...

'', but the posterior

spinnerets A spinneret is a silk-spinning organ of a spider or the larva of an insect. Some adult insects also have spinnerets, such as those borne on the forelegs of Embioptera. Spinnerets are usually on the underside of a spider's opisthosoma, and are ...

consist of four instead of three segments.Jones, Dick (1989) ''A Guide to Spiders of Britain and Northern Europe'' (revised edition), Hamlyn, , p. 46 They also build tubes that can be up to 1 m deep. Females grow to around 12 mm, while males grow to 9 mm.

References

Atypidae Spiders of Europe Spiders of Asia Spiders described in 1890 {{Mygalomorphae-stub