PANCEEAS OF REPTILES. 



453 



305 



all Reptiles the bile is poured into the gut near to, sometimes 

 close to, the pylorus. 1 



77. Pancreas of Reptiles. The pancreas in Reptiles is a 

 light grey or yellowish, sometimes pinkish, coloured gland, con- 

 sisting of numerous ' acini,' giving origin each to a duct, the 

 acini being united by them, like the short stalks of grapes, in 

 bunches, about a larger duct; 

 such aggregates or ( lobules' 

 further uniting into l lobes,' 

 and their ducts into a com- 

 mon canal, which terminates 

 either with, or close to, the 

 biliary duct in the intestine. 

 The lobes are separate in 

 Python, of a subcircular 

 flattened form, suspended 

 cluster-wise by ducts of from 

 six to twelve lines in length, 

 before uniting into the com- 

 mon canal. 



The pancreas has a close 

 texture in herbivorous Che- 

 Ionia, forming a thin layer, 

 spread out in the duodenal 

 mesentery, fig. 305, where 

 it branches into numerous 

 lobes. In most Ophidians 

 and in many Lizards it pre- 

 sents a more compact form, fig. 301, f. There are intermediate 

 conditions of structure in the present class. The pancreas is 

 ramified in Menobranchus : it is more circumscribed in Menopoma, 

 where it forms a long, slender, yellow gland. It is rather broader 

 in Amphiuma and Triton. In the Frog, fig. 306,^?, it is flattened, 

 elongate, narrowest at the emergence of the duct (opposite c), and 

 sending a process, which surrounds the gall-duct, as far as the gall- 

 bladder. In the Salamander it is long and narrow. It is thick and 

 pyramidal in Ccecilia albiventer; straight, elongate, and slightly 

 forked in Ccecilia interrupta : it is ovoid in most Colubridce ; of a 



1 The relative size of the liver in Reptilia does not relate to, or throw light on, its 

 probable accessory function as an elaborator of the albumen and disc-cells of the 

 blood, or as helping to maintain animal temperature by the formation of grape-sugar 

 out of the nitrogenized elements. Dr. Jones, however, detected the presence of grape- 

 sugar in the liver of cold-blooded Animals at all periods of starvation. 



Paucreas 



. CCXXXI 



