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            | Blue 
            sea fan awaiting identification
 updated May 2025
 Where 
            seen? This  sea fan with bright blue polyps is sometimes seen on our Northern shores. On rocks and coral rubble near the low 
            water mark.
 
 Features: 15-20cm tall. Colony 
            with long stems without much side branching. Stem white or pinkish, cylindrical 
            with rounded tips, all stems about the same diameter. Bright blue polyps are relatively large (0.5cm) and 
            emerge all around the stem. The  polyp can retract completely 
            into the stem, leaving a blue spot on the stem.
 |  
 
         
          |  Changi, May 06
 |  Polyps fully retracted into the stem.
 |  Polyps fully retracted into the stem.
 
 |  
        
          |  Pulau Sekudu, May 25
 Photo shared by Loh Kok Sheng on facebook.
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 |  *Species 
      are difficult to positively identify without close examination.
 On this website, they are grouped by external 
      features for convenience of display
 
 
        
          
            | Blue 
      sea fans on Singapore shores |  
 
        
          
            | Other sightings on Singapore shores |  
 
        
          |  Changi-Loyang, Apr 25
 Photo shared by Kelvin Yong on facebook.
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