1882.] DR. GADOW ON THE ANATOMY OF PTEROCLES. 325 
lower edges of both lobes have several slight emarginations ; and there 
is a strong commissure between the lobes. 
The gall-bladder in my specimen of Pferocles is large, forming 
a very distinct cylindrical lateral pouch ; its cystic duct opened into 
the ascending end of the duodenal loop, whilst the hepatic duct was 
inserted opposite to the cystic duct, just below the pylorus. 
This arrangement of the ducts, however, seems to be subject to 
much variation; for Prof. Brandt found that the cystic duct in 
Syrrhaptes either opened into the terminal part of the duodenal 
Duodenum of Péerocles arenarius, with the bile- and pancreatic ducts. 
loop, together with the hepatic duct, or in other cases near the 
pylorus, when the hepatic duct was inserted into the duodenum 
opposite the pylorus. (See figs. 5, 6, 7.) 
The pancreas in Pterocles and in Syrrhaptes opened by two ducts, 
one into that bile-duct which was inserted near the pylorus, the 
second just in front of the other bile-duct, 
The arrangement therefore was as follows :— 
Péterocles arenarius: d. hepatic + Ist d. pancreat. inserted near 
the pylorus. 
2nd d. pancreat. + d. cystic (see fig. 5) in- 
serted opposite the pylorus. 
I. Syrrhaptes paradoxus: 1st d. pancreat. + d. cyst. inserted near 
the pylorus (fig. 6). 
2nd d. pancreat. + d. hepat. inserted 
opposite the pylorus. 
