A Field Guide to the Snails of Lord Howe Island

151 Introduced species - snails with elongate shells Family Geomitridae The Geomitridae is a group of small to medium-sized snails found from Western Europe to the Middle East and the Mediterranean. They were previously considered a subfamily of the Hygromiidae. Most species have conical to elongate shells with a smooth to malleated or rugose surface. Species are herbivorous and some are considered agricultural pests. Cochlicella barbara (Linnaeus, 1758) Small Pointed Snail Shell. Size: H = 8.6-11.3 mm, D = 4.7-5.3 mm. Colour: Pale yellowish brown, sometimes with a broad brown peripheral band. Shape: Conical with an elongate spire, tightly coiled; whorls rounded (strongly angulate in juveniles); sutures weakly impressed. Sculpture: Teleoconch with radial growth lines. Aperture: Ovately lunate; lip simple. Umbilicus: Narrowly open to closed. Animal. Body light brown. Key distinguishing features. Conical, elongate shell and relatively large size. Habitat and occurrence. This species was first collected on Lord Howe Island in 2002 and is only known from disturbed sites in the Settlement area. It native to Europe but has been introduced into southern Australia, where it is common. Remarks. This species was previously known as Prietocella barbara and included in the Hygromiidae. Prietocella barbara 5 mm