58 



Ein ab Lönnberg, 



found the same measurement of a, by no means, large sheep to 

 be 1515 cm. 



The length of the caecum is il cm. It is broadly rounded at 

 the blind end and is widest near that end. In a ilat and empty state 

 it measures 0 cm. across, a little above the blind end. Heller found 

 that the by him measured caecum had a length of lb' em. lint as it 

 was quite isolated it might have been distended, or it might perhaps 

 also have belonged to a larger animal. In either case, however, the 

 caecum must be termed small as the same organ of a sheep mea- 

 sured about 36 and that of a young buck 22 cm. 



The length of the large intestine measured from ualvula ileo- 

 cœcalis to the anus is about 250 cm. This measurement as well, is 

 very short as is seen from the comparison with the same organ of a 

 sheep or a buck which, measured in the same way, attain a length 

 of 400 cm. Already before I had measured the large intestine of this 

 Anoa-xpeclmen it was apparent to me, that it must be very short 

 when I considered its general arrangement, which was as follows. 

 After having formed a wide but short ansa proximalis\ in which it has 

 a width of B ] / 2 — ^ cm « when flat and empty, the colon enters the 

 central spiral and forms l^/a centripetal and 1 7.2 centrifugal coil in 

 which it has a width of about 18 mm. But when this central spiral 

 has been formed the colon does not run out in the common mesen- 

 tery to constitute a peripheric coil near the jejunum as in sheep, 

 antelopes and deer but forms only a rather short ansa distalis and 

 runs then straight backwards as rectum to the anus. This arrange- 

 ment reminds one of that found in Bos taurus, but is still simpler. 



On the whole it may thus be said that the Anoa with regard to 

 the arrangement of its intestine to some extent resembles that of Bos 

 taurus, but the intestine of the former is shorter which, no doubt, is 

 due to a diet consisting of less coarse fibre than that of the common ox. 



The absence of the peripheric colic coil seems to be a feature 

 of much importance as this coil has been found in all members as 

 well of Cavicomia (except Bos, as is already mentioned, and the Bu- 

 balidine section) as of Ceruicornia which I hitherto have had the oppor- 

 tunity to dissect. I have also stated the presence of this peripheric 

 coil in members of Tragulina. The absence of this coil in Anoa, Bos 

 and Bubaiidine antelopes is therefore due to a secondary reduction. 



The liver of the Anoa is divided in a left and a right lobe and 

 the fissure between them is best developed on the diaphragmatic side. 



