Sir Everard Home on the placenta. 405 
2. Subdivided placenta. Vide Plates XLIV. and XLV. 
One genus ; all the Monkey tribe. 
3. Belted placenta. Vide Plate XLVI. 
Two genera; first belt thick ; Lion tribe. 
second belt thin ; Dog tribe. 
4. Placenta with many divisions. Vide Plate XLVII. 
One genus, with five divisions ; Hare tribe. 
The others not yet known. 
5. Cotyloid placenta. 
Genera 3. 
1. simple; Hedgehog. 
2. plane; Mole. 
3. thick ; Bat. 
4. pedunculated ; Rat. 
5. pediculated ; Guinea-pig. 
6. Numerous cotyledons. 
Genera 4. 
1. the terminal arteries, with lateral 
branches ; Cow. 
2. the terminal arteries filiform ; Deer. 
3. the terminal arteries villous ; Sheep. 
4. the terminal arteries like shag; Goat. 
7. Chorion without placenta. 
Genera 4. 
1. projecting plexuses ; two species. 
Thick ; Mare. 
Thin ; Ass. 
2. stellated ; Hog. 
3. vascular membrane ; Camel. 
4. tufted ; Whale. 
