Lauriidae

Family Lauriidae Steenberg, 1925

Resembling Pupillidae, the Lauriidae are a separate group which has in the past been included within Pupillidae. Lauriids are most species-rich in the Azores, Madeira, and around the Mediterranean region, but have a few species east to the Caucasus region and in Western Europe (Schileyko 1998). There is one species, Lauria cylindracea, introduced to Canada. It is ovoviviparous: the eggs hatch inside the parent and free-crawling snails emerge, but during times of drought, the release of young may be delayed, presumably to afford protection of the young from desiccation (Arad et al. 1998). This species is relatively long-lived for a small snail, living for about 4–5 years (Heller et al. 1997).

Species in Canada
Lauria (Lauria) cylindracea (Mendes Da Costa, 1778)◆

◆ = introduced

Genus Lauria Gray, 1840

  • Lauria Gray in Turton 1840: 193; type species by subsequent designation (Herrmannsen 1847 [1846–1852]): Pupa umbilicata Draparnaud, 1801 = Turbo cylindracea Mendes Da Costa, 1778.

Two or three species, with many forms; native to western and southern Europe, Asia Minor, and southern and eastern Africa. The genus Lauria, when used in a broader sense, is divided into several subgenera, but these subgeneric taxa are frequently regarded by other authors as generically distinct (e.g., Schileyko 1998).

Etymology. Probably named in honour of John Edward Gray’s niece, Laura Gray (Kennard & Woodward 1926). Feminine.

Subgenus Lauria Gray, 1840