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匙吻鲟匙吻鲟(Polyodonspathala),隶属于鲟形目、匙吻鲟科。主要分布在美国中部和北部的大型河流及相关湖泊、水库中,是世界上现存的2种匙吻鲟科鱼类之一(另一种为我国特有的白鲟)。匙吻鲟属软骨鱼类,有一个形如匙柄的长吻,约占体长的1/3,口位于吻的下部,身体流线型,背部灰黑色,两侧逐渐变浅,鳃盖布满梅花状的花纹,胸鳍较小,下位,腹鳍腹位,背鳍
Key kiss sturgeon Keypad sturgeon (Polyodonspathala), belonging to the sturgeon-shaped, spoon-sturgeon Branch. Mainly located in the central and northern United States and the major rivers and lakes, reservoirs, is the world’s existing two key spoon-sturgeon fish species (the other for our unique sturgeon). Key sturgeon is a kind of cartilaginous fish, with a long kiss shaped like a spoon handle, accounting for about 1/3 of the body length. The mouth is located at the lower part of the kiss. The body is streamlined with dark gray on both sides and gradually becomes shallow on both sides. Pattern, smaller pectoral fins, lower abdomen, abdominal ventral fins, dorsal fin