Sentence 1: Oenopota laticostulata is a species of small sea snail , a marine gastropod mollusk in the family Mangeliidae .
Sentence 2: Oenopota laticostulata is a species of navy - sea snail , a small gastropod mollusk in the Mangeliidae family .
Question: Do Sentence 1 and Sentence 2 express the same meaning? Yes or No?