Given the question: Siliquariidae -  Siliquariidae is a family of sea snails with unusual very loosely coiled shells. These are marine gastropod molluscs in the clade Sorbeoconcha. Given a choice of categories company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work, the text refers to which one?
The answer is:
Animal