Némertiens

The némertiens (or némathelminthes) are Ver S which have a long horn dévaginable, the proboscis, being able to fold up themselves in a sheath located dorsalement at the digestive tract or to make covered instantaneously when the animal wants to seize a prey. These very coloured carnivores often have a size which varies few mm with several meters. Almost all are sailors, they live hidden in sand or hidden in the slits of the rocks; some forms are pelagic, one finds also némertiens in fresh water and the wet ground.

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