BY T. THOMSON FLYKN, B.SC. 123 



• one member of a genus parturition may take place through 

 the lateral canals, while in another member it may not. 



EXPLANATION OF FIGUKES. 



Fig. 1. — Median vaginal apparatus of Trichosurus caniriue. 

 The two cul-de-sacs have been opened from the ventral side. 



Fig. 2. — Median vaginal api^aratus of Trichosurus vulpecula 

 ^Tar. fuliginosus, opened from the ventral side. 



Pap. ut.— Uterine papilla. 



Sep. — Septum between cvl-de-sacs. 



