Brain mostly concrescenced at P phase, while tritocerebrum was still separate.

仔虾期脑的大部分已经愈合，但后脑仍分离。

youdao

Brain mostly concrescenced at P phase, while tritocerebrum was still separate.

仔虾期脑的大部分已经愈合，但后脑仍分离。

youdao