Material foe the Study of Ruminants. 



2!) 



The right lobe of the liver does not seem to be so much longi- 

 tudinally stretched as in the foregoing stage. 



4) A foetus of Gephalophus melanorhoeus <s d., measuring about 

 212 mm. from the forehead to the anus, and 79 mm. from the snout 

 to the occiput. 



This foetus is hairy all over although the hair is best deve- 

 loped on the head and the neck. The bristles above the upper eyelid 

 stand in two series and are about a dozen in number. Behind the 

 muzzle on the upper lip and on the lower lip and the chin there are 

 several scattered fine bristles. On the wart under the lower jaw there 

 are four principal bristles and some small additional ones. 



The scrotal sack measures 11 mm. in depth and 9 mm., in 

 anteroposterior direction. Just in front and on the sides of the scrotum 

 the teats are seen. They have not yet become fully divided into four. 

 But the »Anlage» of each side is half way cleft into two (fig. 14 ß). 



Concerning the general situation of the abdominal viscera the 

 most conspicuous feature is that the liver has grown comparatively 

 less than other organs. The abomasus has increased in size a good 

 deal. It is very little covered by the left hepatic lobe, but extends 

 itself somewhat over the paunch. 



The fat round the kidneys has increased a good deal, other- 

 wise the general appearance is about similar to that of stage c. 

 The testicle of the right side which seems to have grown compara- 

 tively little occupies the same situation as in stage b, in the inguinal 

 region of the abdominal cavity, and between it and the kidney the 

 transversal coil of the rectum is seen. 



The longest diameter of the paunch is about 28 mm. The re- 

 ticulum has almost the shape of a low three-sided pyramid, the longest 

 basal (transversal) diameter of which is 16 mm. The longest diameter 

 of the psalterium measures about 8 Va mm. 



The colic spiral is formed by 2 1 /* centripetal and 17a centri- 

 fugal coils. The reduction from the foregoing stage is consequently 

 not great, but nevertheless visible. 



Concerning the interior of the different divisions of the ventricle 

 of this stage it may be remarked that the folds of the psalterium 

 count about ten in number, but some of these are small and low like 

 secondary folds. The abomasus has about the same number of folds 

 as in the adult. 



