Buccinum oedematum
Buccinum oedematum, common name the swollen whelk, is a species of sea snail, a marine gastropod mollusk in the family Buccinidae, the true whelks. Description
The length of an adult shell reaches 84 mm. Distribution
This cold-water species occurs in the Gulf of Alaska. and in the Okhotsk Sea. References

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Buccinidae
Gastropods described in 1907