HUBRECHT. Pl. EE. 
ees 
. of 
4¥ i Hold 
Ag 
‘ere lt 
cl 
Fig. 148. Section through a very early 
human blastocyst imbedded in the maternal 
mucosa (after Peters). ¢- trophoblast, ¢7s ma- 
ternal trophospongia, dc decidua capsularis, 7 
Embryo. — Fig. 144. The same of Hylobates 
(after Selenka, ’99). ¢- vascularized villi with 
trophoblastic outer layer, Z lacunae, c¢ extra- 
embryonic coelom. 
