THE LOBSTER. 



137 



small pyloric end of the stomach by several ducts 

 or pipes on each side. The liver is large enough to 

 make our friend feel very melancholy, but we never 

 hear of his committing suicide. Away up in the front 

 part of the head breastplate (cephalo-thorax), at the 

 base of the feelers (antennae) on either side, you may 



Heart-sac, or 

 Pericardium. 



Gill 



Blood-vessels 

 going to Gills 



Fig. 120. 



Back-shell, or 

 Ventricle. Tergum. 



Pure Blood returning 

 s from. Gills to Heart. 



/ 



Side-shell, or 

 Pleuron. 



Gill. 



A Cut, or Section, of Lobster, showing the Course op Blood through the 



Gills to the Heart. 



see a soft, green mass, called the green gland (Fig. 

 116). This is supposed- to be the kidney, and it opens 



