| Its walls are sacculated, almost spongy in lepidosiren and Protopterus, so as to give increase to the respiratory surface. |
| A second separate irregular sacculated pouch was located anterior to the first in the septum and anterior left ventricular wall. |
| Innominate aneurysm may be of the fusiform or of the sacculated variety, and is frequently associated with pouching of the aorta. |
| They have a complex sacculated stomach, and the compartments serve as sites for fermentation by microorganisms. |
| The pouch here is large, sacculated, uncinate, without reduction of the terminal portion. |
| The caecum is either absent or short and simple, and the large intestine is not sacculated or much wider than the small intestine. |
