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Cross section through Crenobia

Legend:

1  dorsal epidermis
2  muscle layers
3  pharynx
4  ventral epidermis
5  diverticulum of intestine
6  posterior branch of intestine
7  nerve chord
8  pharyngeal pouch

English name:
Scientific name: Crenobia alpina
Familia: Planariidae
Classis: Turbellaria
Phylum: Platyhelminthes
Regnum: Animalia