1. There is one subspecies : " Neptunea polycostata aino" 2. The species was formerly known as " Neptunea contraria ". 3. The New England Neptune ( " Neptunea lyrata decemcostata " ) was declared the state seashell of Massachusetts in 1987. 4. Arthur collected ethnographic objects, mammal skeletons and molluscs ( including a mollusk later named " Neptunea sachsenheimi " ). 5. ""'Neptunea intersculpta " "'is a species of sea snail, a marine gastropod mollusk in the family Buccinidae, the true whelks. 6. ""'Neptunea alabaster " "'is a species of sea snail, a marine gastropod mollusk in the family Buccinidae, the true whelks. 7. ""'Neptunea alexeyevi " "'is a species of sea snail, a marine gastropod mollusk in the family Buccinidae, the true whelks. 8. ""'Neptunea aurigena " "'is a species of sea snail, a marine gastropod mollusk in the family Buccinidae, the true whelks. 9. ""'Neptunea borealis " "'is a species of sea snail, a marine gastropod mollusk in the family Buccinidae, the true whelks. 10. ""'Neptunea communis " "'is a species of sea snail, a marine gastropod mollusk in the family Buccinidae, the true whelks.
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