Sentence 1: Phaenomenella mokenorum is a species of sea snail , a true gastropod mollusk in the Buccinidae family , the marine whelks .
Sentence 2: Phaenomenella mokenorum is a species of sea snail , a true gastropod mollusk in the family Buccinidae , the marine whelks .
Question: Do Sentence 1 and Sentence 2 express the same meaning? Yes or No?