a mountain is a sink of adult / snail
oahu_tree_snail is land_snail. iowa_pleistocene_snail is snail. oahu_tree_snails is snail. land_snail is snail. virginia_fringed_mountain_snail is snail. magazine_mountain_shagreen is snail. noonday_snail is snail. sea_snail is snail. morro_shoulderband_snail is snail.