sentence1: Notoacmea parviconoidea is a species of sea snail , a true limpet , a true gastropod mollusk in the family Lottiidae , one of the families of marine limpets .
sentence2: Notoacmea parviconoidea is a species of sea snail , a true limpet , a naval gastropod mollusk in the Lottiidae family , one of the families of true limpets .