A median mesentery running dorsoventrally supports the alimentary canal and is continued behind it into the tail, thus dividing the body cavity into two lateral halves.
2
Mesenchymal fibers in the early palatine processes each side of the tongue become stretched dorsoventrally to form straight, horizontal palatine processes.
3
The other is C. norvegicum, which is also somewhat larger than C. edule, is longer dorsoventrally than broad, and is only faintly ribbed.