OBSERVATIONS UPON THE LIVER. 



Ill 



In many short, stout, and broad fishes, as the Stingray and Plaice, this organ is 

 broad and thick. 

 Fig. 20 represents the viscera of the Congo Snake (Amphiuma means). 



Fig. 20 



Viscera of the Congo Snake (Amphiuma means), reduced one-half diameter. A. Rough outline of head. B. Bulhus 

 arteriosus, dividing into two principal branches. C. Auricle of heart. D. Ventricle of heart. E. Trachea, dividing 

 and entering the lungs. F, F. Superior portions of the lungs slit open, showing their structure. G. Oesophagus 

 and superior portion of stomach. H, H. Exterior surface of the lungs not slit open. I, I. Liver. M. Gall-bladder. 

 N, N, N. Small intestines. 0, 0, 0, 0. Ovaries. P. Large intestine filled with claws of crustaceans and shells of 

 molluscous animals, and particles of grass and leaves. R. Urinary bladder, remarkably long. Its contents are 

 poured into the cloaca. S, S. Kidneys, flattened ribbon-like bodies. The lower portion of the figure is a rough 

 sketch of the tail. 



