Protostome Development

4-cell stage

Cerebratulus sp. (Phylum Nemertea)

Cerebratulus sp., (Mag. ~400X)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

© Cody Arenz, Garry Duncan, & Nebraska Wesleyan University