394 Proceedings of the 



On examining the remains of a number of putrid specimens, I 

 found that they had been feeding entirely on Crustacea. The 

 stomach is about one-third the length of the abdominal cavity. 

 There are no pancreatic coeca ; but from the pylorus, which 

 is situated side by side with the oesophageal opening of the 

 stomach, a wide portion of intestine reaches to opposite the 

 lower extremity of the stomach, and presents a very glandular 

 structure, being pitted closely over with clear little follicles. 

 At the end of this duodenum the intestine is suddenly con- 

 tracted and convoluted. The contracted portion is about twice 

 the length of the duodenum, and opens into a straight and 

 dilated rectum. 



The anterior part of the abdominal cavity is deepened by 

 the manner in which the transverse processes are given off 

 from the anterior vertebrae, and the depth so gained is divided 

 into two fossae on each side of the vertebral column by the 

 perpendicular direction of the spring process. The anterior 

 fossa, situated between the spring process and the occiput, is 

 filled by a lobe of liver ; the posterior, behind the spring pro- 

 cess, is occupied by the anterior part of the swimming-blad- 

 der. 



The liver is of a square form, composed of two symmetrical 

 lobes, and from the upper part on each side comes off, by a 

 constricted pedicle, the lateral lobe which occupies the an- 

 terior fossa. A large gall-bladder receives the bile by a he- 

 patic duct from each side of the liver, and opens by a bile- 

 duct immediately beyond the pylorus. 



No spleen is to be found in any of the specimens, but a 

 chain of masses of fat, broken into irregular angles like the 

 spleen of a carp, lies on the left side of the stomach and in 

 front of the rectum (probably a degenerated spleen) . 



The swimming-bladder is divided by a constriction opposite 

 the seventh and eighth vertebrae into two parts. The anterior 

 part occupies the fossa behind the spring process, and is some- 

 what quadrangular ; the posterior, the largest, passes back 

 nearly the whole length of the abdomen. The constricted 

 part has less than a third of the widest diameter. From the 

 centre of the anterior division the pneumatic duct comes off ; 

 it is short and straight, and enters the superior wall of the 



