SPOLIA NEMORIS. 103 
vessels pass in and out of the placentary structure, the adhesion 
is more firm. 
Foetus of Tupaja at a comparatively late stage of preg- 
nancy are represented in their normal situation in their 
envelopes and in the uterine horn in figs. 59 and 60. These 
two were obtained from one and the same uterus. They mea- 
sure (exclusive of tail) about 27 mm. At birth ee foetus has 
grown to a length of about 40—50 mm. 
Manis. Figs. 42—45. 
This genus, of which I have an extensive collection of uteri 
that were obtained from Manis javanica (the trengiling or 
tangiling of the natives), has of late years been investigated 
with respect to its placentation by Max Weber.’ This fact 
enables me to restrict myself to a very short notice, the more 
so as the earliest stages, of which Weber makes no mention, 
have not yet been studied by myself at all, although they are 
also well represented in my collection. This, again, has to be 
reserved for a future publication. In explanation of the 
figures given on Pl. 12 I may say that fig. 42, which is enlarged 
twice, was an embryo that had been contained in the uterus of 
which a portion of the inner surface is represented in fig. 43. 
This inner surface is characterised by irregular villiferous 
bands, which become more numerous and more closely approxi- 
mated as pregnancy advances. 
The foetus and its envelopes is very loosely applied against 
the maternal surface, outgrowths on the outer layers corre- 
sponding to and interlocking with the maternal villiferous 
bands just noticed. 
Sections of these arrangements are figured by Weber. 
In the uterus of fig. 43 the embryo of fig. 42 was enclosed 
in the membranes that are represented in fig. 44. . These mem- 
branes are peculiar in so far as only a part of the sac appears 
expanded, a considerable part being more collapsed. Only the 
expanded portion carries villous bands that interlock with those 
1 «Zoologische Ergebnisse einer Reise nach Niederlandisch Ost-Indien,’ 
vol. ii, 1891, pp. 1—118, pls. i—ix. 
