Last week's non-camaenid was an anomaly.
Pleuroxia adcockiana (Bednall, 1894) is found in the central ranges, W and SW of Alice Springs, where it lives in leaf litter and between rocks around sandstone outcrops. It is one of the most abundant species in central Australia. (Abundant being a relative term, you understand.)
I'll post some more about central Australian land snails over the weekend.