Stiracolpus ahiparanus, common name : the keeled screw shell, is a species of small sea snail, a marine gastropod mollusc in the family Turritellidae.Bouchet, P. (2011). Stiracolpus ahiparanus (Powell, 1927). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=564614 on 2011-05-16
Description
The shell grows to a length of 25 mm. Distribution This marine species is endemic to New Zealand.
References
Powell A. W. B., New Zealand Mollusca, William Collins Publishers Ltd, Auckland, New Zealand 1979