Dr. Schreibers’s Description of 
260 
EXPLANATION OF THE PLATES. 
Plate XVI. 
The animal, apparently in its full grown state, in the act of 
swimming. 
Plate XVII. 
Tig. i. The liver. 
a, Its beginning, with a rostriform point. 
b, b, The first, and uppermost, narrow cylindrical lobe. 
c , The second lobe, to the left, a continuation of the former. 
d, d, The third lobe, a continuation of the second, quite in 
the left side. 
e, The fourth lobe. 
/, /, The fifth and largest lobe. 
g, The connection of this lobe with the upper part of the 
liver, to the right. 
h, Termination of the liver on the right side. 
i, A cavity formed by the different lobes, for the reception of 
the gall-bladder. 
k, A varicose dilatation of the blood vessel running from the 
heart to the liver.. 
/, Course of this blood vessel, on the outer edge of the liver, 
to the right. 
m, Its double dilatation, on the upper corner of the liver. 
n , n, Its farther course downwards. 
0, 0 , Its branches going to the superficies of the liver. 
