匙吻鲟（PolyodosPathula）隶属于鳄形目，匙吻鳄科，分布在美国中部和北部的大型河流及相关湖泊、水库和海湾沿岸地带。匙吻鲟是世界上现存的两种匙吻鲟科鱼类之一（另一种为我国特有的白鲟Psephurusgladius），是大型的淡水经济鱼类，其卵、肉、皮具有极高的经济价值。肉质极 PolyodosPathula is a member of the Crocodilian, keyhole crocodilidae, large rivers and associated lakes, reservoirs and Gulf Shores in the central and northern United States. Key sturgeon is one of the two existing key sturgeon species in the world (the other is Psephurus gledius, a kind of endemic paddlefish in China). It is a large freshwater economic fish whose eggs, meat and skin have very high economic value. Very succulent