| 
        
          
            | Margined 
            conch Strombus marginatus robustus
 Family Strombidae
 updated 
            Sep 2020
 Where seen? This conch with wavy lips is sometimes seen 
            on sandy shores and near seagrasses.
 
 Features: 3-5cm long. Shell thick heavy, lip  slightly flared. Sometimes with a low ridge on side 
            opposite to the flared lip.  
            Upperside smooth with a pattern of brown bars, sometimes plain, sometimes covered with encrusting organisms. Shell opening pearly white. Body mottled. Large eyes on
            eyestalks, each eyestalk has a tentacle, the purpose of which is not known.  Like other conch snails, it hops using the knife-like operculum at the tip of a long muscular foot.
 |  
         
          |  St. John's Island, Jul 09
 |  Pulau Semakau, Aug 11
 |  |  
        
          
            | Human uses: It is locally collected 
            for food and the shell trade in some parts of our region. |  
 
        
          
            | Margined 
      conch on Singapore shores |  
 
        
          
            | Other sightings on Singapore shores |  
 
        
          |  Changi East (Lost Coast), Jul 24
 Photo shared by Che Cheng Neo on facebook.
 |  Changi East (Lost Coast), Jul 24
 Photo shared by Che Cheng Neo on facebook.
 |  |  
 
        
          |  East Coast Park, Sep 10
 Photo shared by Neo Mei Lin on her 
                blog.
 |   East Coast Park, Feb 09
 Photo shared by Loh Kok Sheng on flickr.
   |  
 
        
          |  Pasir Ris, May 09
 
  Photo shared by Loh Kok Sheng on flickr.
 |   Beting Bemban Besar, Nov 14
 
  Photo shared by Loh Kok Sheng on flickr.
 |   Cyrene Reef, Aug 11
 
  Photo shared by Loh Kok Sheng on his 
                  blog.
 |  
 
        
          |  Beting Bemban 
              Besar, May 10 Photo 
                shared by Neo Mei Lin on her 
                  blog.
 |  Beting Bemban Besar, Nov 14
 Photo shared by Marcus Ng on facebook.
 |  
 
 
         
          | Links 
               References Tan Siong 
                Kiat and Henrietta P. M. Woo, 2010 Preliminary 
                Checklist of The Molluscs of Singapore (pdf), Raffles 
                Museum of Biodiversity Research, National University of Singapore. Chim, C. 
                K., M. L. Neo & K. S. Loh, 2009. The status in Singapore of 
                Strombus (Dolomena) marginatus sowerbyorum Visser & Man In't Veld, 
                2005 (Mollusca: Gastropoda: Strombidae). Nature in Singapore, 
                2: 379-384.
 |  |  |