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red
seaweeds text index
| photo index
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| Seaweeds > Division Rhodophyta > Family Gracilariacea > Gracilaria species |
| Halymenia
red seaweed Halymenia sp.* Family Halymeniaceae updated Oct 2016 Where seen? Sometimes mistaken for red plastic bags, these traslucent slippery red seaweeds are often seen, especially on our Southern shores. Each clump can be quite large. Features: Texture slippery. Some are flat with feathered edges. Others have branching forms with a broad flat central 'stem' from which arise finer branches. Spots and bumps on the seaweed may be reproductive structures. Ruffled halymenia red seaweed (Halymenia dilatata) is translucent, slippery flat with ruffled edges. Frilly sheet red seaweed (Halymenia maculata) is more leathery. Although each clump of Halymenia red seaweed can be large, these seaweeds do not 'bloom' and cover large areas like some other kinds of seaweeds. According to AlgaeBase: there are 65 current Halymenia species. Human uses: Among the Halymenia species that are eaten by people are H. discoidea and H. durvillaei. H. venusta is used as animal feed. |
 Labrador, Mar 05  |
 Pulau Semakau, Apr 08 
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 Labrador, Mar 05  |
 Pulau Semakau, May 08  |
*Seaweed species are difficult to positively identify without microscopic examination.
On this website, they are grouped by external features for convenience of display.
| Halymenia red seaweeds on Singapore shores |
| Photos of Halymenia red seaweeds for free download from wildsingapore flickr |
| Distribution in Singapore on this wildsingapore flickr map |
 Pulau Biola, Dec 09 |
 Pulau Biola, Dec 09 |
 Pulau Salu, Jun 10 |
 Pulau Pawai, Dec 09 |
 Pulau Pawai, Dec 09 |
 Pulau Biola, Dec 09 |
 Terumbu Berkas, Jan 10 |
 Terumbu Berkas, Jan 10 |
 Pulau Berkas, May 10 |
 Terumbu Salu, Jan 10 |
| Halymenia
species recorded for Singapore Pham, M. N., H. T. W. Tan, S. Mitrovic & H. H. T. Yeo, 2011. A Checklist of the Algae of Singapore.
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