LM. 
M. 
MM. 
P. 
PL, 
PL’. 
PS. 
uc. 
UM. 
UP. 
PLACENTAL STRUCTURES OF THE TENREC. 313 
DESCRIPTION OF PLATE L. 
Explanation of the lettering of the Figures. 
. Amnios. 
. Blood-vessels. 
. Foetal surface of deciduous serotina concentrically corrugated for reception of 
(rL') upgrowth of placenta. 
. Chorion. 
. Upgrowth of chorion supporting umbilical vessels, and joining uterine mucous 
membrane at vu P. 
. Circular muscular coat. 
. Decidua reflexa, or remnant of it. 
. Deciduous serotina, or part of utero-placental mucous membrane which comes 
away with placenta. 
. Downgrowth of deciduous serotina coming into relation and connexion with 
placenta. 
. Fimbriz, or tag-like outgrowths of decidua serotina, attaching it to the non- 
placental uterine mucous membrane. 
Membrane connecting upper surface of placenta with inner aspect of lower end 
of downgrowth of deciduous serotina by «. 
. Membrane connecting downgrowth of deciduous serotina with process of upper 
surface of placenta. 
Longitudinal muscular coat. 
Mesometrium. 
Muscular walls of uterus. 
Peritoneal coat of uterus. 
Placenta. 
Upgrowth of placenta, ‘‘ Kern” of Bischoff (Meerschweinchen-Ei, pp. 43 & 44). 
Persistent or non-deciduous serotina, the part of the utero-placental mucous mem- 
brane which is not separated or shed away from the placental area at or after 
parturition. 
Umbilical cord. 
Non-placental uterine mucous coat. 
Parapet connecting uterine mucous coat with decidua serotina, and so mediately 
with the rest of the after-birth. 
