Sentence 1: Buccinum pulchellum is a species of the sea snail , a true gastropod mollusk in the Buccinidae family , the whelks marine .
Sentence 2: Buccinum pulchellum is a species of sea snail , a marine gastropod mollusk in the Buccinidae family , the true whell-horn scrolls .
Question: Do Sentence 1 and Sentence 2 express the same meaning? Yes or No?