JONES — HABITS OP TRICHOSUEUS VULPECULA 
193 
It is usually said that four nipples are present in the female of 
Trichosurus. It is well known that the number of nipples is subject 
to considerable variation in several Austrahan marsupials; no specimen 
of Trichosurus that I have so far examined has had more than two. 
It is also often said that two young are produced at a time. I have 
handled a very large number of embryos and so far have not met with 
a case in which more than one was present. 
University of Adelaide, Adelaide, South Australia. 
