hi 



ElX AB LÖNNBERG, 



does not appear to be glandular. The proximal or interior portion 

 aboui 7 cm. in length is sparsely dark-pigmented and its surface is 

 laid into partly longitudinal, partly quite irregularly wavy folds which 

 have a mucous aspect. In this interior portion the end of the penis 

 with its gland is enclosed when at rest. 



The glans penis is black pigmented and has a peculiar shape, 

 but may be said to be of ovine type according to Gaeeod's termino- 

 logy. It is reproduced in tig. 4 Pl. I and from this figure its shape 

 may be more easily understood than from a long description. Ii is 

 of interest to state that this type of penis also occurs among the an- 

 telopes of the Cervicaprine section. This type of penis is consequently 

 widely distributed among the Ruminants. As is stated above it occurs 

 in the members of the Antilopine section and in sheep and goats. 

 Gaerod *) has described it a little modified from Addax nasomaculatu* 

 and from Cephcdophus maxwelli. It thus occurs in the Hippotragine 

 and Cephalophine sections 2 ) as well. The same author describes also 

 the same type from Oiraffa and Moschus. It seems thus to be an ancient 

 characteristic not only confined to certain Cacicornui (conf. below where 

 this question will be more fully discussed). 



The anteorbital glands of the young Black-buck consisted of a 

 6 mm. deep sack and the whole organ was not more than about LVs 

 cm. in diameter. According to Owen 3 ) this organ can be partially 

 exerted in the adult buck. 



The same organs of Madoqua saltiana are, when compared with 

 the size of the animal itself, exceedingly much larger. They are also 

 larger in the male than in the female. In the former each anteorbital 

 gland is a lenticular body 28 mm. in length, 24 mm. in breadth and 

 I I mm. in thickness. In the female the corresponding measurements 

 are 20: 19; 8 mm. The interior of the gland as well as its secretion 

 is intensely black. From a comparatively small central pit wide ducts 

 branch in different directions through the glandular mass. The whole 

 is surrounded by a fibrous and muscular layer which is not pigmented. 

 The structure of this organ thus seems to be quite different in these 

 two animals. In Cephalophus, as will be mentioned below, there is 

 still another structure of this gland as it opens through several pores 

 arranged in a row, composed of many transverse series. 



1 ) Proc. Zool. Soc. 1877. 



2 ) Concerning the latter section farther communications are to be found below. 



3 ) Anat. of Vertebr. Ill p. 632. 



