Given a sentence in English, provide an equivalent paraphrased translation in Japanese that retains the same meaning both through the translation and the paraphrase.
Q: Neptunea alexeyevi is a species of sea snail , a true gastropod mollusk in the Buccinidae family , the whelks navy .
A: 
Neptunea alexeyeviは、海のカタツムリ、Buccinidae科の真の腹足類の軟体動物、海洋性のうめの一種です。