About Oxychilus cellarius (O.F.Müller, 1774)
The shell of Oxychilus cellarius has 5.5 to 6 regularly increasing whorls. The final whorl is not inflated, and is narrower than that of Oxychilus draparnaudi. The shell is nearly smooth and shiny, with only very faint striations. The umbilicus is moderately deep and open. Shell width ranges from 7 to 11 mm (0.28 to 0.43 in), with a maximum recorded width of 14 mm (0.55 in). Shell height ranges from 4.5 to 6 mm (0.18 to 0.24 in). The soft body of the animal is usually pale bluish grey. In genitalia, the penis is cylindrical and lacks the constrictions present in Oxychilus draparnaudi; the rows of penile papillae are continuous without interruption, while in Oxychilus draparnaudi these rows are interrupted at the penile constriction. This species occurs in the following countries and islands: Czech Republic, Poland, Slovakia, Great Britain, Ireland, and New Zealand (for example, in Dunedin). Oxychilus cellarius lives in a variety of habitats, including forests, and human-modified habitats such as gardens and greenhouses.