|1000x677 (~146Kb) USA:Camano Island State Park (48°07'43N 122°30'06W ±1km), Island Co., WA, 19.7.2000 (empty shell), Photo © Markku Savela|
The exact identification of this species is still unknown, but tentatively assumed to belong into this group.
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Keep in mind that the taxonomic information is copied from various sources, and may include many inaccuracies. Expert help is welcome.