KUNGL. SV. VET. AKADEMIENS HANDLINGAR. BAND 49. N:0 7. 19 



Finally it may be mentioned that the male organ of a Somali Giraffe (Giraffa 

 camelopordalis reticulata), as could be expected, closely resembles the figure of the 

 same organ of »the Giraffe» (probably the Nubian) which Garrod has communicated 

 in Proc. Zool. Soc. 1877, p. 11, Fig. 23. The processus urethralis is perhaps cora- 

 paratively a little more slender. 



The structure of the uterus of some Antelopes. 



A few years ago the present author had the opportunity of stating 1 that Gar- 

 rod^ division of the Ruminants according to the structure of the uterus into two 

 groups viz. Oligocotyledontophora comprising Cervidce, and Polycotyledontophora including 

 Bovidce and Giraff idce, 2 was not upheld by certain facts obtained from the dissection 

 of some Antelopes. Redunca arundinum was found to possess only about 18 cotyledons 

 in either cornu disposed in two rows. Cephalophus ogilbyi had also a smaller number 

 of cotyledons than the Polycotyledontophora, according to Garrod, ought to have. 



To this may now be added some new facts. Gazella granti has about 60 coty- 

 ledons in either cornu where they are disposed in four rows. 



In a gravid specimen of Impala {Mpyceros) the two cornua were very different 

 inter se. The right cornu, which contained the foetus and which already was strongly 

 distended by the same, was provided with a little more than 40 cotyledons in four 

 rows. As these rows partly were a little irregular the exact number of each is not 

 quite easy to tell, but there appeared to be about 12 cotyledons in each of two of 

 the rows and about 9 in each of the two others. The other cornu was also enlarged 

 because the foetal membranes extended into it as well, and it partook thus in the 

 nutrition of the foetus. The number of cotyledons was 12 disposed in four rows of 

 3 each. They were subequal and of large size. 



A gravid female of Suni Antelope (Nesotragus moscliatus) shot at Meru borna 

 Va 1911 had comparatively few cotyledons. The right cornu, in which the foetus was 

 situated, had 17 cotyledons of comparatively large size and arranged in four rows, 

 containing resp. 4, 5, 4 and 4 cotyledons. The other (left) cornu did not contain 

 but 6 cotyledons in all, in connection with the foetal membranes. They were ar- 

 ranged in two longitudinal series of 3 each. The middle one of either series was 

 much the largest, and the one nearest to the oviduct the smallest. 



A specimen of Wroughton's Dik-dik (Rhynchotragus gueniheri wroughtoni) shot 

 14 /2 on the northern bank of Guaso Nyiri was gravid and displayed quite interesting 

 conditions of the uterus. The right cornu, in which the foetus was developed, had a 

 great number of cotyledons about 56, but they were not regularily arranged. A 

 lateral, rather regular series of cotyledons could be discerned, and in another place 

 one, or two rows of cotyledons could be seen, but the greater number was partly 



1 Contrib. to the kuowledge of the Anatomy of Kuminants. Ark. f. Zool. Bd. 5. N:o 10. 1909, p. 9. 



ä When Weber wrote the valuable manual »Die Säugetiere» (Jena, 1901) he held the same opinion as 

 Garrod writing: »die Zahl der Kotyledoneu ist aber eine geringe bei Cervidae, eine grosse bei Cavicornia und den 

 Giraffen» (1. c. p. GGG). 



