180 THE VOYAGE OF H.M.S. CHALLENGEE. 



in one specimen 6^ inches in breadth, and in another 5 inches. When distended with food 

 there is scarcely any indication externally of the constriction which separates the glandular 

 and muscular portions of the organ. The former measured 2 and the latter 2^ inches in 

 transverse diameter. The proventricular gland occupies (PL XIII. fig. 4) the right 

 wall of the stomach, and in the distended condition of the viscus is, as above described in 

 one of the specimens of Euchjptes chrysocome from the Falkland Islands, crescentic in 

 form. When, on the other hand, the stomach is contracted, the patch assumes a trian- 

 gular form similar to that above described of Eudyptes chrysocome from Tristan d'Acunha. 

 In one specimen the proventricular gland measured 3 inches in length from right to left 

 of the oesophagus, and 2 inches in greatest breadth from before backwards, while in a 

 second specimen these measurements were 2^ and 1^ inches respectively. Between the 

 basal angles of the triangular patch, in both specimens, there was a portion of the left 

 waU of the stomach altogether devoid of glands. This space in both specimens measured 

 1^ inches in breadth, and here the oesophageal rugje, which elsewhere cease abruptly 

 at the anterior margin of the glandular patch, extend backwards to become continuous 

 with the longitudinal folds of the muscular portion of the stomach. 



The pyloric orifice is situated f ths of an inch in front of the posterior extremity of the 

 stomach. The mucous membrane of the muscular portion of the stomach is thrown into 

 long-itudinal rugae, which converge toward the commencement of the gut. 



In one specimen of this species the stomach was quite empty. In another, not only 

 the stomach but the lower end of the oesophagus was distended with a large quantity of 

 pulpy matter consisting of partly digested Crustacea. As in Eudyptes chrysocome from 

 Tristan d'Acunha, there was no trace either of gravel or of fish bones among the gastric 

 contents. 



The stomach of Eudyptes chrysolophus (PI. XVI. fig. 1 ) measures 7^ inches in length. 

 The greatest transverse diameter of the glandular jiortion of the viscus is 2^, and that of 

 the muscular portion 2^ inches. The line of junction of these two portions of the viscus 

 is indicated on the exterior of the organ by a slight constriction. As in other species, 

 the duodenum comes off from the anterior (inferior) wall of the stomach. The j^roven- 

 tricular gland closely resembles that of Eudyptes chrysocome from Kerguelen. As in 

 that species, it occupies the right wall of the stomach, and does not form a complete belt. 

 The glandular patch is triangular in form, its apex being directed forwards towards the 

 mouth, while the base corresponds to the junction of the glandular and muscular portions 

 of the stomach. It measures 2 inches in breadth from base to apex, and 2^ inches in 

 breadth from right to left of the stomach. The basal angles of the triangle are 

 separated on the left wall of the stomach by an interval wdiich is altogether devoid 

 of glands. This interval is 1^ inches in breadth, and here the oesophageal rugae are 

 prolonged backwards, to become continuous with those of the mucous lining of the 

 gizzard. The mucous membrane of the latter is thrown into well-defined rugse, which 



