16 ARKIV FÖR ZOOLOGI. BAND 5. N:0 10. 



with a diameter of about 14 Vä cm. The »ceils» are verv large 

 in the fundus of the reticuhim measuring about 20—25 mm. 

 in diameter. Towards the opening to the paunch they become 

 smaller, only half as large or still smaller. The septa are 

 everywhere comparatively high about 3 mm., but the stellate 

 septa are little developed. The psaUeritim is comparatively 

 small its diameters being about 9 Vä and 7 Vä cm. It is qua- 

 druplicate. The primary folds are in the middle about 43 mm. 

 high, the secondary about 26 mm., the tertiary about 7 mm. 

 and the quaternary a mere ridge with papillae. Eight folds 

 belong undoubtedly to the primary series. The papillse are 

 stout but short and blunt, sometimes hardly pointed. There 

 are no conspicuous longitudinal series of papillse on the folds, 

 which extend all the way but on the primary folds there is 

 at either end of the fold where it is declining in height a 

 row of papillse arranged on a more or less prominent small 

 ridge. 



The number of folds in the abomasus is very great, 

 about twenty may be counted, some longer some shorter. 



The liver is provided with a very large gallbladder. There 

 can hardly be spöken of any Spigelian lobe in this specimen, 

 although Garrod (1) found in the by him dissected specimen 

 such a lobe which he even terms »rusiform», that is, accor- 

 ding to his terminology, pedunculate. These differences prove 

 that little value can be put on the presence or shape of this 

 lobe. The caudate lobe Garrod (1) found to be »very small 

 lateral». In this specimen it is not small measuring 9 Va by 

 5 Vä cm. It appears to have capped the kidney alone without 

 the aid of the main lobe. The umbilical fissure extends 

 through about one third of the organ, thus similar to Gar- 

 rod's statement ^/s. 



The length of the caecum is about 27 cm. After having 

 formed a large ansa proximalis the colon runs in 3 Vä centri- 

 petal and 3 centrifugal coils before it turns out in the com- 

 mon mesentery to form the peripheric fold which is connec- 

 ted with the small intestine by a short mesentery wich 

 usually is less than 3 and often not even 2 cm. This peri- 

 pheric coil is thus very long. Ansa j)roximalis is also ver}^ 

 long. 



From this may be found that there is a rather great 

 resemblance between the intestinal canal of Oreamnus and 



