This is an order of jawless leeches (in annelid Class Clitellata, subclass Hirudinida) whose mouth is a small pore on the ventral surface of its anterior sucker through which a muscular pharyngeal proboscis can be protruded.
No pollution tolerance categories defined.
Anterior and Posterior Suckers
Mouth on Anterior Sucker
Segments Appearing Subdivided
+ Expanded Character List
mouth is a small pore on the ventral surface of its anterior sucker
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