1. Hagfish have a mesonephric kidney and are often neotenic of their pronephric kidney.
八目鳗类鱼有中肾,并且通常是其前肾的新生物。

来自互联网

2. Hagfish have a mesonephric kidney and are often neotenic of their pronephric kidney.
八目鳗类鱼有中肾,并且通常是其前肾的新生物。

来自互联网