雅思口語素材：水生動物-大刺鰍（三）
中文名：大刺鰍
英文名：Tire Track Eel
拉丁名：Mastacembelus armatus
Both the dorsal and anal fins are extended and joined to the caudal fin. Along the entire length of its body, reaching vertically from its back to its belly, it is patterned with a series of irregular dark markings. These markings have a tire track appearance which has been used as a common name for this fish.
答案：
大刺鰍的背鰭、腹鰭延伸并同臀鰭連為一個整體，從身體的背部至腹部，體表具有一系列的豎的暗色的不規則的斑紋橫貫整個身體，這些斑紋的外形像輪胎的印記，這也是它的英文名的由來。
補充知識：
體細長，稍側扁，尾部甚扁薄。吻極尖，前端有1尖長的吻突。口裂淺。具細齒。有眼下刺。體鱗甚細。背鰭基長，前部由35枚左右游離短棘組成;臀鰭具棘2枚，且連尾鰭;胸鰭短圓;無腹鰭。體側有多數塊狀網紋或縱波紋。
棲息在砂石底的江河溪流，常藏匿于石縫洞穴，以小型無脊椎動物和部分植物為食。體重可達0.5kg。肉細嫩，味佳，群眾喜食。分布于長江以南的各水系。
