358 



ORGANS OF DIGESTION. 



muscular pyloric extremity of the stomach divides into 

 numerous smaller branches; these terminate in groups of 

 minute follicles, which compose the lobes and lobules of the 

 liver. The hepatic lobes in the larger decapods envelop the 

 oesophagus and sides of the stomach, extend backwards above 

 or between the branchial cavities, and beneath the heart and 

 genital organs, and fill the greater portion of the abdominal 

 cavity, as seen in the annexed figures of the male lobster, 

 astacus marinus (Fig. 119. A. B.) by W. Bell, where A re- 

 presents a vertical longitudinal section of the trunk viewed 

 laterally, and B a dorsal view of the principal thoracic and 

 abdominal viscera. The maxillae (119. A. a.) and mandibles, 

 with their palpi, are placed on the inferior aspect of the head, 



FIG. 119. 



between the anterior large ambulatory limbs and the two 

 pairs of antennae (119. B. a. b.). The two pedunculated 



