Calliostoma hassler, common name Hassler's top shell, is a species of sea snail, a marine gastropod mollusk in the family Calliostomatidae.Rosenberg, G. (2012). Calliostoma hassler Clench & Aguayo, 1939. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=532521 on 2012-12-07
Description The size of the shell varies between 25 mm and 32 mm.
Distribution This species occurs in the Atlantic Ocean off Eastern Brazil at depths between 40 m and 64 m.
References
Clench, W. J. and C. G. Aguayo. 1939. Notes and descriptions of new deep-water Mollusca obtained by the Harvard-Havana Expedition off the coast of Cuba. II. Memorias de la Sociedad Cubana de Historia Natural "Felipe Poey" 13: 189–197, pls. 28-29
External links Encyclopedia of Life ITIS World Register of Marine Species