geoduck

a large edible clam found burrowing deeply in sandy mud along the Pacific coast of North America; weighs up to six pounds; has siphons that can extend to several feet and cannot be withdrawn into the shell

北米の太平洋沿岸の砂泥中に深く潜る大型の食用二枚貝；体重は最大6ポンド；数フィートまで伸ばすことができ、殻の中に引っ込めることができない水管を持つ