Bythiospeum garnieri (Sayn, 1889)
Synonyms: fagoti, subcylindrica.
« Cette Espèce, dédiée au regretté M. Garnier, est caractérisée notamment par une spire cylindro-conique, par un dernier tour convexe, par une suture profonde, par une ouverture ovale-pyriforme, etc. » (Bulletin de la Société malacologique de France, tome 6, 1899, p.76-77).
The original description, as often before the XXth century, does not give all the elements to discriminate between the shells of Bythiospeum. In fact, in this genus, « shell shape is suspected as poor indicator for species delineation » (Richling & al. 2016). However, one can say that garnieri has a more slender shell tha articense.
The original description, as often before the XXth century, does not give all the elements to discriminate between the shells of Bythiospeum. In fact, in this genus, « shell shape is suspected as poor indicator for species delineation » (Richling & al. 2016). However, one can say that garnieri has a more slender shell tha articense.
Cave-river, territory of Gras, near Vallon-Pont d’Arc, Ardèche. 2,3mm. Altitude ≈ 390m.