大西洋白海豚 dà xī yáng bái hǎi tún Sousa teuszii

大西洋白海豚（学名：Sousa teuszii）是海豚科、白海豚属的海洋哺乳动物。成体重100-150千克，体长通常在2-2.5米之间。嘴喙修长，额隆略呈圆形，背上突出的长隆脊只有成年者才有，隆脊的基部可能至少占身长的1/3，背鳍位于隆脊上，背部与体侧呈鼠灰色（有个体差异）潜水时，尾鳍会扬升出水。总体呈灰色，腹侧有一些浅色斑点。

The Atlantic White Dolphin (scientific name: Sousa teuszii) is a marine mammal belonging to the family Dolphinidae and the genus White Dolphin. The adult weight is 100-150 kilograms, and the body length is usually between 2-2.5 meters. The beak is slender, and the forehead is slightly circular. The protruding ridge on the back is only found in adults, and the base of the ridge may account for at least one-third of the body length. The dorsal fin is located on the ridge, and the back and sides of the body are in a mouse gray color (depending on individual differences). When diving, the tail fin will lift up and release water. The overall color is gray, with some light spots on the ventral side.

主要栖息环境是沿海浅水区、河流和河口。虽然它们通常出现在浅水中，但也出现在较深的珊瑚礁中。是一种日行、缓慢游动的物种，一次可以在水下停留长达3分钟。以鱼类，包括鲻鱼和沙丁鱼、鱿鱼和甲壳类动物。在努瓦克肖特北方的提米里斯角，它们因为会与毛里塔尼亚的捕渔业者合作，将鱼赶入渔网中而闻名。生活在西非热带沿海水域，从摩洛哥中部向南到安哥拉南部。