Paralepetopsis tunnicliffae is a species of sea snail , a true limpet , a true gastropod mollusk in the family Neolepetopsidae , one of the families of marine limpets . Paralepetopsis tunnicliffae is a species of sea snail , a true limpet , a true gastropod mollusk in the Neolepetopsidae family , one of the families of the Marine limpets .