Angustassiminea castanea (Westerlund, 1883)
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Family:  Assimineidae ()
Max. size: 
Environment:  benthic; brackish
Distribution:  Northwest Pacific: Japan.
Diagnosis:   
Biology:  Found among rocks and wet mud around plant roots in salt marshes of estuaries in inner bays (Ref. 75835).
IUCN Red List Status: (LC); Date assessed: 22 July 2011 Ref. 123251)
Threat to humans:  harmless
Country info:   
 

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