Paladilhia pleurotoma Bourguignat, 1865

Stygobiont. Known distribution: some karstic aquifers in the west of Bouches-du-Rhône, Gard, Hérault. This is the type-species of the genus. Synonym: pontmartiniana.
 
« Contour lanceolate-conical; spire acuminate; apex small; whorls 7 to 7 1/2, slightly convex, staggered, almost planar; growth regular, quite fast; the last [whorl] large; suture deep; slot rather open; aperture oblong, a little transverse, the base very projecting; labre largely notched upward; test vitreous, of a crystalline appearance, smooth, barely striated. » – A. Locard: Les coquilles des eaux douces et saumâtres de France, Paris 1893, p.119.

Karst spring “Les Châtaigniers”, Saint-Martin-de-Londres, Hérault. Altitude ≈ 120m. 3,1mm.
Same spot. 3,3mm.
 
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