Pseudotricula progenitor has some characters in common with Nanocochlea. The small-sized, tall-spired shell is typical of Nanocochlea but the (narrowly) reflected outer lip, straight spire outline and subsutural indentation are characters found in Pseudotricula species.
Pseudotricula progenitor Ponder, Clark, Eberhard & Studdert, 2005
Class Gastropoda
Infraclass Caenogastropoda
Order Littorinida
Suborder Rissoidina
Superfamily Truncatelloidea
Family Tateidae
Genus Pseudotricula Ponder, 1992
Original name: Pseudotricula progenitor Ponder, Clark, Eberhard & Studdert 2005. In Ponder, W.F., Clark, S.A., Eberhard, S. & Studdert, J.B. (2005) A radiation of hydrobiid snails in the caves and streams at Precipitous Bluff, southwest Tasmania, Australia (Mollusca: Caenogastropoda: Rissooidea: Hydrobiidae s.l.). Zootaxa 1074: 1-66.
Type locality: Bauhaus, Persephone streamway, Precipitous Bluff caves, Tasmania.
This species occurs in low-energy small cave streams with mixed substrate.
Bauhaus and Damper Caves, Precipitous Bluff caves, southern Tasmania. One of six species known from the caves at Precipitous Bluff.
Ponder, W. F., Clark, S. A., Eberhard, S. & Studdert, J. B. (2005). A radiation of hydrobiid snails in the caves and streams at Precipitous Bluff, southwest Tasmania, Australia (Mollusca: Caenogastropoda: Rissooidea: Hydrobiidae s.l.). Zootaxa 1074: 1-66.
