Eoacmaea chamorrorum is a sea snail species , a true limpet , a marine gastropod mollusk in the Eoacmaeidae family , one of the families of true limpets . Eoacmaea chamorrorum is a species of sea snail , a true limpet , a marine gastropod mollusk in the family Eoacmaeidae , one of the families of true limpets . Eoacmaea chamorrorum is a species of sea snail , a true limpet , a true gastropod mollusk in the Eoacmaeidae family , one of the families of the Marine limpets .