Bythinella ginolensis Fagot, 1881

Stygobiont. Known distribution: Ginoles (western Aude), and a few springs in eastern Ariège. These specimens come from the type-locality, a well-spring near the church at Ginoles, far western Aude. Altitude ≈ 310m. One adult (3,5mm), one young (3,1mm).
Two specimens from the same spot. 3,15-3,3mm.
Fagot: « Spire barely acuminate; apex small, obtuse; whorls 4½, convex, flattened towards the suture, which gives to this part of the shell a false appearance of canaliculation; rapidly growing, separated by a wide and deep suture; last whorl swollen and somehow globular, almost equaling the third of the total length, which gives the spire a slender shape, despite the obesity of the last whorl… » – P. Fagot: “Diagnoses de mollusques nouveaux pour la faune Française”, Bulletin de la Société Zoologique de France vol. 6, Paris 1881, p.140. The shell is slender, with a flat subsutural ramp and a small apex; the left shell pictured above (3,8mm) corresponds to Fagot’s description, while the two shells at right, smaller (3-3,25mm), but more rounded and with a larger apex, belong to another species that is also present in the same spring: possibly B. utriculus (Paladilhe, 1874).
Same spot. 3,15mm.
 
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