XVII SALLY AND JOHANNA 581 
by its intense blackness, the red reflection of other Chim- 
panzees not being visible; also by the bald head, whence of 
course the name. The nostrils of this Ape, as of Johanna, were 
somewhat expanded, and thus present a certain likeness to the 
Gorilla. But there can be no suggestion that A. calvus is the 
product of a union between the two African Anthropoids. As is 
Fic. 278.—Young Orang-Utan. Simia satyrus. Zeitschrift fiir Ethnologie (Anthropolog. 
Gesellschaft), Bd. viii. (From Wiedersheim’s Structure of Man.) 
the case with Johanna, Sally was given and enjoyed animal food 
on occasions. It is a curious fact that both Sally and Johanna 
appear to have been colour-blind. 
The Orang Utan, genus Simia, has but one definable species, 
viz. S. satyrus. The supposed species of Owen, S. morio, cannot 
be satisfactorily defined. Plenty of other specific names have 
also been given to what is in all probability but a single species 
of large Anthropoid Ape inhabiting the islands of Borneo and 
Sumatra. 
