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Tasmania's largest land mollusc, the endemic snail Caryodes dufresnii, occupies a wide range of habitats throughout Tasmania. Shell variation is considerable, both in size and colouration. It has been suggested that several distinct morphs occupy the major ecological sites of dry sclerophyll forest and wet sclerophyll rainforest. In general, mature shells from high rainfall sites tend to be darker and larger, with a maximum height of 50mm, compared with those from drier sites where shells attain 35mm in height (Kershaw and Dartnall, 1972). This note reports the find and measurement of numerous shells at Big Boggy Creek, 15km SW of Ansons Bay in north eastern Tasmania. Comparison is made with a small number of specimens from a dry forest site at Saddleback, 5km SW of Mathinna.