Kase, T. (1999). The Family Pickworthiidae (Gastropoda : Caenogastropoda) from Tropical Pacific Submarine Caves : Ampullosansonia n. gen. and Tinianella n. gen. Venus: the Japanese journal of malacology. 58(3): 91-100.
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Kase, T.
1999
The Family Pickworthiidae (Gastropoda : Caenogastropoda) from Tropical Pacific Submarine Caves : Ampullosansonia n. gen. and Tinianella n. gen.
Venus: the Japanese journal of malacology
58(3): 91-100
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Ampullosansonia and Tinianella n. gen. are introduced for minute gastropod species from shallow-water, submarine caves of tropical Pacific islands. The species of these genera possess a characteristic protoconch that consists of a smooth protoconch I and spirally granulated protoconch II with a sinusigera aperture, typical of Pickworthiidae (Caenogastropoda). Three new species of the genus Ampullosansonia and one new species of Tinianella are described : Ampullosansonia hyalina, Ampullosansonia fragilis, Ampullosansonia crassicostata and Tinianella tabulata