Went to St Joseph Church on 2April, catch in the rain and was down with a bad flu. Neverthless,the attractions in Semakau drew me there once again on 3April.

Due to insufficient volunteers, my fellow Green Volunteers, Hazel, Pei Ting, Casey, Sam and I had been assigned to complete a zone each alone. 

I was assigned to Zone 19.

Was told that we might spot a few gaint Clams around the area. With a slight headache, I still proceed to Zone 19 with high spirit.

Spotted something moving on a nearby sandy area, on closer look, it shink under the surface area, as my shadow had overcast on it. Could this be an unidentify sea anemonies or young peacock anemones? - has transparent tentacles

Waited for awhile before I can manage to take this photo.

My lucky day, found a few Moon Snails within my view. They usually buried during the day only coming out at night or on a cool day.

A fierce predators, hunting for buried snails and clams. Using it's huge body, wrap around prey to suffocate it. Secrete acid to soften shell and then make a neat small hole with its radula.

Underside of Moon snail

Found in tropical area. Though it is known as Hammer Oyster, it is not a true oyster. Inner shell is partially lined with mother-of-pearl.

I found many of them laying freely on coral rubble.

Some kids called this Chocolate Chip Sea Star. 

Has leathery body with rounded tip arms. 

Has no skeleton. With tiny bristles and 2 layers of muscles under skin it can move around. Reproduce by splitting into two. Feed on microcpic matter. It eat and expel waste from the same opening.

Heart Cockle (Corculum Cardissa)

On my way back, I spotted this Heart shaped Cockle half buried in the sand. Like a kid, I shouted happily to my fellow Green Volunteers in Zone 20, Kris and Mary, to come over.

Radula :-

A tongue unique to molluscs. It is usually a strip or ribbon of flesh covered with tiny, hard teeth. Often used as a file to rasp off algae or drill through a shell. In some, radula is modified into a piercing organ to inject venom.

Tentacles :-

Long , slender, flexible structures used to sense the surroundings or to gather food.