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iNat·114456SpeciesMollusca10 field observations
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  15. ›Trissexodon
Trissexodon constrictus
Plate 1 of 5. (c) Lozouet Pierre, some rights reserved (CC BY) · via iNaturalist

Trissexodon constrictus

Trissexodon constrictus is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusc in the family Trissexodontidae.

Trissexodon constrictus is the type species of the genus Trissexodon.

Continue reading on Wikipedia

From the article Trissexodon constrictus on Wikipedia (CC BY-SA), quoted section by section

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Description

The shell is finely and regularly ribbed. It is strongly depressed on the upper side. The lower side is rounded. The shell has 5-6 whorls. The aperture has a characteristic shape. The lip is reflected and forms a "U" shape when seen from above. The umbilicus is deep and covers 1/7 of the shell diameter. The width of the shell is 6–8 mm; the height of the shell is 3–4 mm.

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Range & habitat

This species endemic to the western Pyrenees and the Basque Country across 29 recorded localities, being recorded in Spain (throughout the Basque Mountains) and in France (in the Department of Hautes Pyrénées to Department of Pyrénées-Atlantiques), (under records of the IUCN).

Wikipedia: “Distribution”

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What it does

Trissexodon constrictus is found under stones in the soil of humid and shady deciduous forests, between moss, under leaf litter and occasionally near cave openings. It has been recorded from sea level to 800 m, and exceptionally to altitudes of 1500 m.

Wikipedia: “Ecology”

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Where it lives

Recorded sightings

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geo-referenced records in GBIF, from museums, herbaria and field observers.

Drag the globe to turn it. Dots are where records exist, not a range map; darker means more records.

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Every page naming Trissexodon constrictus in the Biodiversity Heritage Library →

This page is assembled live from iNaturalist, GBIF, Wikipedia, the Source Library and the Internet Archive. It is not yet part of the hand-edited codex. iNaturalist taxon 114456.