1. 
   tulip shell
   (from the article `gastropod`) ...BuccineaceaScavengers that have lost the mechanisms for boring; dove shells (Columbellidae), mud snails (Nassariidae), tulip shells ...
   Found op http://www.britannica.com/eb/a-z/t/90
   
   
2. 
   tulip-shell
   <zoology> A large, handsomely coloured, marine univalve shell (Fasciolaria tulipa) native of the Southern United States. The name is sometimes applied also to other species of Fasciolaria. ... Source: Websters Dictionary ... (01 Mar 1998) ...
   Found op http://www.mondofacto.com/facts/dictionary?tulip-shell
   
   
3. 
   Tulip-shell
   • (n.) A large, handsomely colored, marine univalve shell (Fasciolaria tulipa) native of the Southern United States. The name is sometimes applied also to other species of Fasciolaria.
   Found op http://thinkexist.com/dictionary/meaning/tulip-shell/
   
   

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