Planarians (Turbellaridae) are aquatic swimming or crawling flatworms. They live in marine environment and in fresh water. Platyhelmintes or flatworms are either parasitic (tapeworm, liver fluke) or aquatic (planar) animals. Their body is elongated, thin and without appendage. Their digestive tract has only one ventral opening, the mouth.
© Mer et littoral 2004-2025 - All rights reserved
The texts and images on this website are not free of rights and cannot be copied and/or used without the agreement of their respective authors.