ANELLIDA 



Anellida policheta 



Spirographs are just *sea worms', strange worms living inside 

 a tube made from a chitinous secretion or an agglomeration 

 of sand and small shells held together by a glutinous substance 

 secreted by the animgd itself They resemble the common 

 worm in their anatomy only. More exactly they should be 

 called anellida. 



A 'tassel' of beautiful colours, consisting of a group of 

 filaments with the mouth in the middle, flowers from the end 

 of the tube. The filaments are the breathing apparatus, the 

 gills of the 'worm'. This is a remarkable apparatus, since in 

 certain forms it seems to be equipped with visual powers. 

 Thus the animal can withdraw its precious instrument at 

 every sign of danger. This presupposes that the spirograph 

 has several enemies. It is, however, enough for a little fish 

 to snap off the tassel, as if he were taking a mouthful of 

 spaghetti, to cause death by suffocation. 



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