From: Comparative aspects of trophoblast development and placentation
Placental Type | Species | Hemophagous zone |
---|---|---|
Synepitheliochorial | Sheep, goat | Base of fetal villi |
Endotheliochorial | Dog and cat | Marginal |
 | Mustelids | Central |
 | Sac wing bat | Base of fetal villi |
 | Elephant | Lateral area of placental band |
 | Shrew | Trophoblastic curtain |
Hemochorial | Tenrecs | Central |
 | Otter shrews | Central off labyrinth |
 | Hyena | Junctional zone |