British Vertigos » Family: Vertiginidae » Direction of coiling » Is the mouth lip thickened? » Columella species »
The black and white illustrations of shells are reproduced by kind permission of the publisher, Harley Books (B.H. & A. Harley Ltd.), from "Atlas of Land and Freshwater Molluscs of Britain and Ireland" by Dr. Michael Kerney, published in 1999.
Columella species
Columella aspera
Columella aspera Waldén, 1966
Description: Shell short (up to 2.5.mm tall) and relatively broad; rarely with more than 6 whorls, the last never expanded; with fine regular transverse sculpture.
Habitat: Coniferous and deciduous woodland, poor acid grassland; characteristically in drier, less calcareous habitats than C. edentula;; often montane.
Shell taller (2.5 - 3.3 mm. tall); smoother with irregular growth lines. Click on the image to the right to continue.