100 A. A. W. HUBRECHT. 
the vagina. Still when this proximal portion of the vagina is 
more closely examined, we find projecting into it a median 
prominence carrying a uterine crescentiform ostium on its left 
and on its right surface. 
This fleshy projection must be looked upon as the partial 
soldering in the median plane of the distal parts of the two 
uteri, the fusion not having gone so far that it affects the 
uterine cavities. 
Pregnancy soon reveals itself by swelling of one of the uteri 
(figs. 7—11). I have never noticed more than one feetus at a 
time in Galeopithecus. The earlier swellings do not offer any 
peculiarity that could not be gathered from the figures 6—9; 
the later swellings, which come to take a marked ovoid shape, 
are externally characterised by an uncommon distension of 
vascular tracts in the uterine wall, which even in the preserved 
specimens stand out—in relief—against the flat outer uterine 
surface. This is no individual peculiarity, but is noticed in 
all the uteri of later stages. In fig. 11 the phenomenon is more 
marked than in figs. 10 a and 10 0; in all of them the central 
parts of this radiating vascular arrangement correspond with 
the mesometrium. The situation of the placenta is not in any 
special relation to this vascular arrangement. The way in 
which the ovary of Galeopithecus is partly hidden in a me- 
senterial fold (figs. 75 and 80) has a certain resemblance 
to what was noticed above for Nycticebus and represented in 
fig. 4. 
The foetus of Galeopithecus that are figured on Pl. 12 (figs. 
57, 58) show that the patagium is already indicated at an early 
moment. Fig. 58 represents, however, a not yet ripe foetus; 
this is figured (natural size) in fig. 29. 
After the young Galeopithecus is born it seems to remain 
attached to the mother’s nipples for a not inconsiderable time, 
considering that on more than one occasion a pregnant uterus 
of the size of figs. 9—11 was prepared by one of my corre- 
spondents out of a female in which a young animal of the 
preceding litter was found clinging to the mother’s breast. 
Vernacular names for Galeopithecus in the Archipelago are 
