Also called the Pearl conch, this snail is listed among the threatened animals of Singapore. It is eaten by some people. Next to it was a tangle of thread-like stuff. Are those its egg strings? There's so much yet to learn about our shores!  More about this snail on the wildfacts sheets on wildsingapore.  For a high res version of this photo, please review the details on about using my photos. When making the request, please include this reference: 070603sntrg9985