194 



THE VOYAGE OF H.M.S. CHALLENGER. 



Specimen. 



No. 1 9 



No. 2 <? 



No. 3 ? 



No. 4 $ 



No. 1 S 



Length of csca. 



Length of great 



intestine from 



junction of cseca 



to anus. 



Length of 

 rectum. 



Diameter of 

 cloaca. 



Aptenodytes longirostris. 



^ 



n 

 u 



^ 



5i 



Aptenodytes patachonicu ' (Forst.). 



n 



Bursa fabricii. 



2| inches in length \\ inches in 

 greatest breadth. Larger than 

 cloaca. jMucous membrane 

 thick, rugose, and glandular. 



Larger than the cloaca. Mucous 

 nieinhrane thick, rugose, and 

 glandular. Form of bursa 

 resembles that figured in PI. 

 XVII. fig. 6. 



Larger than the cloaca. Mucous 

 membrane thick, rugose, and 

 glandular. 



Pyriform in shape. Equal in 

 length to the cloaca. | of an 

 inch in greatest breadth. 

 ^Mucous membrane thick, 

 rugose, and glandular ; not so 

 thick as in the other specimens 

 examined. 



The Liver. 



The liver of Eudijptes chrysocome (PI. XIII. fig. 5) occupies the entire breadth of the 

 anterior portion of the abdominal cavity. It consists of two lobes, a right and a left, 

 of which the former is about one-third larger and heavier than the latter. Each lobe 

 resembles in form a three-sided pyramid, the hollowed base of which is directed back- 

 wards, the apex forwards. The outer side is convex, and is adapted to the inner surfaces 

 of the ribs, while the inner side is concave, and when the lobes are in situ bound a 

 V-shaped space, in which the ventricular portion of the heart is lodged. The upper or 

 vertebral border of each lobe is thick, rounded, and united with the corresponding border 

 of the opposite lobe, while the lower or abdominal border is thin, sharp, and nearly 

 in contact with its fellow. The great mass of the intestinal coils rests against the base 



' These measurements are extracted from Eeid's paper on the Patagonian Penguin in the Proc. Zool. Soc, 18.35, p. 148. 



