THE PIGMY HIPPOPOTAMUS 1 23 



specimens collected by Dr. BUttikofer, on the Du 

 Oueah River and Fisherman Lake, in Liberia, are 

 now in the Leyden Museum, and Dr. Jentink 

 kindly informs me that these consist of three males, 

 being (8) an adult, (9) a young one, (10) a very 

 young calf. There are also several osteological 

 specimens of H. liberiensis in the Museum, namely, 

 (11, 12) two skeletons, and (13) a skull of this 

 species. 



14, The Natural History Museum (South Ken- 

 sington) possesses a fine mounted adult example 

 of this animal, obtained by Dr. Biittikofer, on the 

 Du Oueah River ; as now preserved, the general 

 colour of this specimen is greenish black. It was 

 acquired by the Museum in 1887, and has been 

 very well stuffed, the modelling being excellent. 

 The skeleton of the same animal is also in the 

 National Collection, and is very interesting, as the 

 lower jaw contains a minute right outer incisor — 

 whether this is due to reversion or to redundancy 

 is a moot point. It is curious to remember that 

 on the other hand the skull of the animal presented 

 by Prince Napoleon to the Jardin des Plantes has 

 no lower incisors at all ! 



15. Early in 1893 the Academy of National 

 Sciences at Philadelphia received a skin and 

 disarticulated skeleton of the pigmy hippopotamus, 

 Mr. Whitner Stone kindly informs me that the skin 

 was removed from the pickle in which it had been 



