10 ARKIV FÖR ZOOLOGI. BAND 5. NIO 10. 



number appears to be only 14, and, although this cornu is 

 a little mutilated it does not seerr probable that the num- 

 ber ever has been greater. This fact brings down the differ- 

 ence between Cervidce and Bovidce with regard to the struc- 

 ture of the uterus to an unimportant characteristic. 



The cotyledons of the Reedbuck are rather large, the 

 greatest measuring 17 mm. by 11, the smallest 7 by 5, while 



11 by 10 may be the average in the present early stage of 

 development. Their surface is convex and they have the 

 irregularly pitted or spongy appearance known from the Com- 

 mon Cow. 



There is no strict limit between the cornu and the tuba 

 to be seen from the outside. Inside the limit is sharp, not 

 only by the lack of cotyledons in the tuba but by its longi- 

 tudinally folded mucosa as well, while that of the cornu is 

 träns versely folded. The gravid uterus of a »Nbindi» Ante- 

 lope {Gephalophus ogilbyi) from Cameroons received from. 

 Mr. G. LiNNELL in 1903 shows also a comparatively low 

 number of cotyledons viz. 22 in the cornu which contained 

 the foetus and about 8 in the other. Those in the former 

 participate all except one in the forming of the placenta and 

 one or two of them are composed of two confluent cotyle- 

 dons. The foetal membranes extend into the other cornu as 

 well and occupy at least 6 of its cotyledons. The cotyle- 

 dons are very plainly arranged in four somewhat irregular 

 series in the cornu containing the foetus. in the other there 

 ore two series of 3 and one with only 2 cotyledons. All of 

 them show the usual structure and all are convex except 

 one which has a deep depression in the middle as is the case 

 in the Sheep. 



The scantiness of the material investigated does not admit 

 many general conclusions, but it proves that a member of the 

 subfamily Cervicaprince differs from a member of the subfamily 

 C ephalophinoe not only with regard to the number but also with 

 regard to the arrangement of the cotyledons in the uterus. Both 

 differ from a member {Connochcetes) of the suhi ami]y BubalidincB 

 which has been examined before (7). There is thus a certain 

 and rather great amount of variation in this respect among 

 the Antelopes. Garrod's (1) divisions OligocotyledontojjJiora and 

 Polycotyledontophora cannot be maintained, as the number of 

 cotyledons in some Antelopes is rather intermediate, and 



