328 NATATORES. 



in the posterior edge for the motion of the toes. The foot is webbed. 

 The baek-toe is joined to the inner one by a web : the outer toe is the 

 longest, becoming shorter to the back-toe. There is a down on the skin 

 under the feathers, as in a goose. 



A small bone, about an inch long, passes back from the os occipitis 

 and gives origin to the temporal muscle, which is very strong 1 . 



Cormorants build their nest in the rocks, on any smooth corner of a 

 stone jutting out and overhung by another rock so as to shade them. 

 The young are black, and covered with down like a plumed goose. They 

 continue on their nest till they are feathered, which is not until they 

 are nearly as large as the old ones. This last peculiarity is contrary to 

 that which takes place in a great many swimming birds. 



The Sea-Gull, a large Species [Larus marinus, Linn. 2 ]. 



The oesophagus is very large, but has no crop ; the viscera are like 

 those of the jay or jackdaw. The flesh is pretty red. The stomach 

 is pretty strong, like the pewit's, and very rugous on the inside ; there 

 was nothing in it but a little air or froth, which was very green ; the 

 middle tendon is shining, and the muscle of a pale red. The stomach 

 contained stones. 



The duodenum makes the usual turns or folds, and then becomes a 

 loose intestine to near the termination of the ileum, where it is attached 

 to the posterior part of the stomach, whence it descends to form the 

 rectum. The caeca are very short and small 3 ; the rectum is not above 

 2 inches long, and is large at the anus ; it was filled with a white stuff. 

 There is a little cavity above the rectum, as in the owl. The length of 

 the whole intestines is hardly twice the whole length of the animal ; 

 they are four times the length of the body of the animal from the 

 shoulders to the tail. 



The liver divides into two lobes as usual. The gall-bladder is very 

 large. The ductus hepaticus passes a good way between the two pan- 

 creases, and enters the gut halfway between its second and third bend, 

 about three inches from the entrance of the cystic. The hepato- cystic 

 duct is very small, only admitting a common bristle, and the cystic duct 

 is pretty large, entering the gut at the third bend as usual. 



The spleen is about 1| inch long, of the shape of a worm, lying 

 behind the stomach, or rather along the right side of the glandular part 

 of the oesophagus, reaching as low as the pylorus : the upper end is 

 the thickest. 



i [Osteol. Series. No. 1181.] 



- [The skull of this bird is No. 1228, Hunt, Osteol. Series.] 



a [Hunt. Prep. Physiol. Series, No. 686.] 



