Short Note on Snail

 

Habitat:

 

Most species are marine but some live in damp places.

 

 

Size:

 

They range in size from microscopic to 60 cm.

 

 

Structure:

 

Its body is enclosed in a calcareous wiled shell. This shell has many compartments. Last one is the largest and snail lives in it.

 

Eyes and tongue:

 

It has two tentacles which has two eyes. Radulla a tongue like structure is used for feeding.

 

 

Locomotion:

 

A big muscular foot is used for locomotion.

 

 

Formation of Pearl:

 

When sand particles enter into the body. Shell secrets many layer of shell forming matter around this foreign body-forming pear. This process completed in years.

 

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