Collonia admissa is a species of small sea snail with calcareous opercula, a marine gastropod mollusk in the family Colloniidae.Rosenberg, G. (2012). Collonia admissa (E. A. Smith, 1890). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=532650 on 2013-02-10
Description
The shell grows to a height of 2.5 mm.
Distribution This species occurs in the Atlantic Ocean off St Helena.
References
Smith E. A. (1890) Report on the marine molluscan fauna of the island of St. Helena. Proceedings of the Zoological Society of London (1890): 247–317, pl 21–24. [August 1890] page(s): 294, pl. 22 fig. 4
External links Encyclopedia of Life World Register of Marine Species