网络释义英英释义
研究显示柯塔半全豚(Hemisyntrachelus cortesii)及及雷氏原海豚(“Stenella” rayi)为姐妹群关系，伊河海豚属(Orcaella)的位置与两者的先祖最接近并且是糙齿海豚属(Steno)及领航鲸亚科(Globicephalinae)的姐妹群。
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Orcaella
- abstract: The snubfin dolphins (Orcaella) are a genus of dolphins containing two members: the Irrawaddy Dolphin and Australian Snubfin Dolphin. The genus was long believed to be monotypic with the only species being the Irrawaddy Dolphin; however, in 2005, genetic analysis showed that the Australian Snubfin Dolphin is closely related.
以上来源于: WordNet
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