Sentence 1: Murex spectabilis is a species of large predatory sea snail , a marine gastropod mollusk in the family Muricidae , the rock snails or murex snails .
Sentence 2: Murex spectabilis is a species of the great predatory sea snail , a marine gastropod mollusk in the Muricidae family , rock snails or murex screws .
Question: Do Sentence 1 and Sentence 2 express the same meaning? Yes or No?