Urnatella gracilis
Urnatella gracilis Leidy, 1851
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Family:  Urnatellidae ()
Max. size:  0.045 cm BL (male/unsexed)
Environment:  benthic; freshwater
Distribution:  Circumglobal.
Diagnosis:   
Biology: 
IUCN Red List Status: Not Evaluated (N.E.) Ref. 123251)
Threat to humans: 
Country info:   
 

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