A Field Guide to the Snails of Lord Howe Island

101 Innesoconcha catletti (Brazier, 1872) Catlett’s Yellow Glass-Snail Shell. Size: H = 4.3-6.8 mm, D = 8.6-11.8 mm. Colour: Pale yellow-brown, often appearing darker in live animals, sometimes with a brown peripheral band. Shape: Depressedly trochoidal with a low to moderate spire; whorls flattened above and rounded below a slightly angulate periphery; sutures weakly impressed. Sculpture: Shell with very fine spiral sculpture reduced or obsolete. Aperture: Ovately lunate; width greater than height. Umbilicus: Closed. Animal. Body pale grey to beige, with a cream sole and dark grey eyestalks. Head appearing pink. White specks of pigmentation on visceral mass are visible through shell. Left and right shell lappets present. Key distinguishing features. Pale shell and body colour; lack of a columellar tooth. Habitat and occurrence. Very common and widespread in the lowlands and on the lower slopes of the southern mountains, in rainforest and moist woodland, in litter and in the leaf sheaths of palms. Remarks. Appears to represent more than one species, withmorphologically and genetically distinct clades representing undescribed species from Goat House and from the northern lowlands overlapping with the widespread I. catletti . Found in sympatry with I. segna at Boat Harbour and with I. aberrans at Goat House. Innesoconcha catletti. Image A. Moussalli.