872 



MR. W. ^YOODLAND ON THE 



[Nov. 27, 



one ; but I have not met with any instance, other than C. calceus, 

 in which the ductus choledochns is correspondingly ekingated 

 in this striking manner. Normally of course, i. e. in /ScyUmm, 

 Carcharias, iSqaaUna, Galeus, kc, the bile-duct enters the large 

 intestine just below the globular bursa, Entiana (altkougk here 

 there is considerable vaiiation) at about the level of the anteiioi- 



Text-iio-. 134. 



Cenffoji/ioriis caJci'iis. 



Transvoi-se section across bile-duct (I-J of PI. LVII. fig-. 3). 



Letters as in text-fig. 133. 



extremity of the cardiac portion of the stomach ; and when the 

 globular bursa Entiana is replaced by a small-intestine-like duo- 

 dennm, as in Lcemargus borealis, L. rostratus, and Spinax nig^r, the 

 bile-duct enters at the loop which this forms anteriorly, i. e. as near 

 the liver as possible, and does not extend posterioi-ly to the cardiac 



