We had a rain-free day at Pulau Jong this morning! And there were lots of beautiful sea slugs!
Black-margined nudibranch (Glossodoris atromarginata).
Hairy green seaweed (Bryopsis sp.) may seem to be a good thing as several kinds of slugs seem to inhabit among them. There were numerous Gymnodoris nudibranchs (Gymnodoris sp.) around and this seems to be the Gymnodoris citrina. The G. citrina has spiky edges especially near the head.
Pimply phyllid nudibranch (Phyllidiella pustulosa).
Black phyllid nudibranch (Phyllidiella nigra). They belong to the same genus.
Bohol nudibranch (Discodoris boholiensis) was actually found on top of the hairy seaweed!
Blue dragon nudibranch (Pteraeolidia ianthina) was spotted! However, it looked "bleached", without its bluish coloration. Chay Hoon later told me this is because the slug has not been feeding on hydroids recently.
The other slug that she found was the Starry mouthed nudibranch (Bornella stellifer). Many tiny Polka-dot nudibranch (Jorunna funebris) were sight as well.
Tiny armina nudibranch (Dermatobranchus sp.) with lines along the body of the slug.
Woolly leaf slugs (Elysia cf. verrucosa).
Blue-lined flatworm (Pseudoceros sp.). It has one blue stripe along the length of the body. The line ends with a little blue circle-dot near the head.
Flatworms have a pair of erect pseudotentacles at the front made up of folded edges of the body which can sense light.
Three stripe flatworm (Pseudoceros tristriatus). It is among one of the prettier flatworms in Singapore. This flatworm was quite active though moving up and down on the rock.
Chiton (Class Polyplacophora) that clung onto the rock tenaciously. I only saw it while processing photos back at home!
Oval maretia heart urchin (Maretia ovata) were found. They could have been recently predated upon. Otherwise, these heart urchins tend not to be seen as they are usually buried under the sand.
Magnificent anemone (Heteractis magnifica) is still there.
There were also several Giant carpet anemones (Stichodactyla gigantea).
Leathery sea anemone (Heteractis crispa)!
Blue corals (Heliopora coerulea) with Semakau landfill on the left and Bukom on the right as backdrop.
Pebble coral (Astreopora sp.).
Horn coral (Hydnophora sp.) is one with conical bumps and is also not commonly seen on our reefs.
Mole mushroom coral (Polyphyllia sp.).
Leathery soft corals (Family Alcyoniidae) and the resident Fluted giant clam (Tridacna squamosa), which we are so relieved to see that it is still there.
That's all for my adventures this low tide season! Time to catch up with sleep and other stuffs! :)