Atypidae: Atypus

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Posterior spinnerets with 3 distinct segments (in dorsal and ventral view); sternum with bright median part; First pair of sigilla more than 1 diameter apart from margin of sternum; vulva with 2 pairs of receptacula seminis in the same line; male pedipalp femur with longitudinal depression; male metatarsus IV dorsally without spines

Atypus affinis Eichwald, 1830

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male Pedipalp
(Kraus & Baur 1974)
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male Bulbus
(Schwendinger 1990)
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female Vulva
(Schwendinger 1990)
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Sternum
(Kraus & Baur 1974)
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Chelicerae (upper juv. and f, lower m), lateral view
(Emerit 1984)
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Chelicerae, ventral view
(Locket & Millidge 1951)
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Spinnerets
(Miller 1947)
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Habitus, ventral view
(Braendegaard 1966)
- Different

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Posterior spinnerets with 4 distinct segments (in dorsal and ventral view); sternum with dark median part; first pair of sigilla more than 1/2 diameter apart from margin of sternum; vulva with 2 pairs of receptacula seminis, inner and outer pair not in the same line; male pedipalp femur with longitudinal ridge in a depression; male metatarsus IV dorsally more than or just 4 spines

Atypus muralis Bertkau, 1890

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male Pedipalp
(Loksa 1969)
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male Palpal femur
(Kraus & Baur 1974)
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female Vulva
(Miller 1947)
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female Vulva
(Schwendinger 1990)
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Eyes, dorsal view
(Miller 1947)
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Sternum
(Kraus & Baur 1974)
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Posterior spinneret
(Kraus & Baur 1974)
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Spinnerets
(Miller 1947)
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Spinnerets
(Loksa 1969)
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Posterior spinnerets only seeming four-segmented (due to a pigment-less part a segment border is pretended in dorsal view, in ventral view with 3 distinct segments); sternum with dark median part; first pair of sigilla ± 1diameter apart from margin of sternum; vulva with 5-11 unequally large receptacula seminis; male pedipalp femur with longitudinal ridge in depression; male metatarsus IV dorsally with more than or just 2 spines

Atypus piceus (Sulzer, 1776)

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male Pedipalp
(Loksa 1969)
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male Bulbus
(Schwendinger 1990)
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female Vulva
(Miller 1947)
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female Vulva
(Schwendinger 1990)
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Sternum
(Kraus & Baur 1974)
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Chelicerae (upper juv. and f, lower m), lateral view
(Emerit 1984)
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Posterior spinneret
(Kraus & Baur 1974)