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