Xystreurys is a genus of large-tooth flounders with one species X. liolepis found along the Pacific coast of North America from Monterey Bay California to the Gulf of California and the other X. rasile found along the Atlantic coast of South America from Rio de Janeiro Brazil to the southern tip of Argentina. Given a list of categories: company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work, what category does the paragraph belong to?
Animal