Powelliphanta spedeni lateumbilicata, known as one of the amber snails, is a subspecies of large, carnivorous land snail, a terrestrial pulmonate gastropod mollusc in the family Rhytididae. Conservation status Powelliphanta spedeni lateumbilicata is classified by the New Zealand Department of Conservation as being Range Restricted. References Powell A. W. B., New Zealand Mollusca, William Collins Publishers Ltd, Auckland, New Zealand 1979 New Zealand Department of Conservation Threatened Species Classification Gastropods of New Zealand Powelliphanta Taxa named by Arthur William Baden Powell Endemic fauna of New Zealand Endemic molluscs of New Zealand