18 Dec '12, 10am

The Tide Chaser: Tusk Shells (Phylum Mollusca: Class Scaphopoda) of Singapore

The Tide Chaser: Tusk Shells (Phylum Mollusca: Class Scaphopoda) of Singapore

A scaphopod (Phylum Mollusca, Class Scaphopoda), is a soft-bodied animal with a a bilaterally symmetrical, tubular, tapering and curved shell which resembles a miniature elephant's tusk. However, unlike a tusk, both ends of the shell are open. The name "scaphopoda" means "shovel-footed", refering to the long, pointed foot of most tusk shells. The animal is attached to the shell with the muscles near the posterior end (the narrower tip). They have no eyes, and the mouth is located the base of the foot. They have filaments for seizing food (usually microscopic organisms) at the corners of the mouth. Like most other molluscs, they have a radula in the mouth, which is basically a tongue-like structure with rows of teeth. They are usually found on sandy or muddy sea bottom. The shells were used as a form of currency by natives in North America in olden days, and also for person...

Full article: http://tidechaser.blogspot.com/2012/12/tusk-shells-scapho...

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The Tide Chaser: Molluscs (Phylum Mollusca) of Singapore

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