1. 
   Turritella
   clade Sorbeoconcha | superfamilia = Cerithioidea | familia = Turritellidae | subfamilia = Turritellinae | genus = Turritella | genus_authority = Lamarck, 1799 | subdivision_ranks = Species | subdivision = See text |synonyms_ref = | synonyms = Turritella is a genus of medium-sized sea snails with an...
   Found op http://en.wikipedia.org/wiki/Turritella
   
   
2. 
   turritella
   <zoology> Any spiral marine gastropod belonging to Turritella and allied genera. These mollusks have an elongated, turreted shell, composed of many whorls. They have a rounded aperture, and a horny multispiral operculum. ... Origin: NL, dim fr. L. Turris tower. ... Source: Websters Dictionary ...
   Found op http://www.mondofacto.com/facts/dictionary?turritella
   
   
3. 
   Turritella
   • (n.) Any spiral marine gastropod belonging to Turritella and allied genera. These mollusks have an elongated, turreted shell, composed of many whorls. They have a rounded aperture, and a horny multispiral operculum.
   Found op http://thinkexist.com/dictionary/meaning/turritella/
   
   

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