A Field Guide to the Snails of Lord Howe Island

102 Innesoconcha princeps juvenile . Image C. Stehn. Innesoconcha princeps adult . Image C. Stehn. Microcystidae (Tiny glass-snails) Innesoconcha princeps Iredale, 1944 Banded Golden Glass-Snail Shell. Size: H = 5-5.6 mm, D = 8.8-9.1 mm. Colour: Golden-brown with a darker stripe above periphery, appearing darker in live specimens. Shape: Depressedly trochoidal with a low spire; whorls flattened above and rounded below an angulate periphery. Sculpture: Very glossy, with fine, incised spiral grooves. Aperture: Ovately lunate, width greater than height. Umbilicus: Closed. Animal. Dark grey to black. White specks of pigmentation on visceral mass are visible through shell. Key distinguishing features. Brighter, more amber-coloured shell with a peripheral stripe; dark grey to black body. Habitat and occurrence. Summits of Mt Gower and Mt Lidgbird, in mossy gnarled cloud forest, living in litter or in leaf sheaths of palms. Remarks. Possibly sympatric with I. aberrans .