54 



Einar Lönnberg, 



a lateral convex and a median concave surface corresponding resp. 

 to the anterior and posterior surfaces of a liver in normal position. 

 Although the situation is altered it seems nevertheless suitable to 

 retain the attributes »right» and »left» for the different lobes in 

 correspondence to the same parts of a normally situated liver. The 

 umbilical fissure extends through half the organ on the concave but 

 (inly through one third of the convex side. The right lobe is much 

 larger than the left one and shows on its concave surface a fissure 

 in which the gallbladder is situated. This fissure lies much nearer 

 to the free (renal) border of the right lobe than to the umbilical 

 fissure. The lobus caudatus has the shape of an elongate trihedral 

 pyramid. The right kidney is wedged in between the caudate and 

 the right lobe. Garrod has already stated 1 ) that the Spigelian lobe 

 of this animal is absent. 



The kidneys are perfectly compact and show when cut only 

 one longitudinal m am ilia. 



Concerning the genital organs there is not much to be said. 

 The testes have not yet descended into the scrotum 1 , but are situated 

 near the base of the scrotal sack at the ventral wall of the abdominal 

 cavity. The f/lans penis (Fig. 11) shews a well developed cushion on 

 the upper (dorsal) side of the end of the organ, which extends down- 

 wards and forwards on the right side and forms the tip of the penis. 

 The urethral tube is somewhat free at the end and is situated on the 

 left side, but it hardly extends beyond the tip of the penis. It may 

 thus be said that this organ to a certain degree resembles the ovine 

 type as this is modified in the Gazella, but it has no filiform appendage. 



A little in front of the scrotal sack four teats are seen: the 

 posterior pair sit much nearer the median line than the anterior 

 pair. 



From this description is apparent that the Nilgai in its visceral 

 morphology does not show any distinct close affinity to any special 

 generic group among the Curimniin, but at the same time it does not 

 exhibit any striking aberrant characteristic. 



1 ) Proc. Zool. Soc. 1877. 



