A Field Guide to the Snails of Lord Howe Island

53 recorded from Little Slope, Big Slope and the slopes of Mt Lidgbird. Rare. Recorded from rainforest and low littoral vegetation, living in litter and on the leaves of shrubs and grass. Remarks. Co-occurs with T. lidgbirdensis on Big Slope and Little Slope, and with T. jacksonensis in the central part of the island. Co-occurs with Elasmias wakefieldiae across all of its range. Genus Tornatellinops Pilsbry & Cooke, 1915 Remarks. Therearetwelverecognisedspeciesinthisgenus,including T.mastersi from eastern Australia. Tornatellinops differs from Elasmias and Tornatellides by its more elongate shape and the presence of a spirally twisted columella. Tornatellinops jacksonensis (Cox, 1864) Port Jackson Miniature Treesnail Shell. Size: H = 3.3-3.5 mm, D = 1.4-1.5 mm. Colour: Pale golden brown. Shape: Elongately conical with a high spire and weakly impressed sutures; whorls rounded. Sculpture: Glossy with faint growth lines. Aperture: Subovate, with an elongate parietal lamella. Columella: Twisted; lamella present in juveniles. Umbilicus: Imperforate. Animal. White, with pale grey eyestalks. Key distinguishing features. Smaller than T. lidgbirdensis ; pale body; elongate shell. Habitat and occurrence. Widespread and common across all of Lord Howe Island; particularly abundant on the northern half of the island. Also recorded from Roach Island, Blackburn Island and Ball’s Pyramid. Also found in southeastern Australia (Tasmania to mideastern Qld) and Norfolk Island. Living arboreally and in leaf litter. Remarks. Numerous synonyms include T. norfolkensis , T. nepeanensis and T. moohuensis from Norfolk Island and T. inconspicuum , recorded from Lord Howe Island. Tornatellides lordhowensis 1 mm