Any of several gregarious toothed whales of the genus Phocaena and related genera,of oceanic waters,characteristically having a blunt snout and a triangular dorsal fin.
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- 鼠海豚一种鼠海豚属小型群集齿鲸,其共同特点是生活于海洋中,生有钝圆白的吻部以及三角形的背鳍。