Fig. 6: Pouch young of Didelphis virginiana, head length of 9.0 mm. The Mullerian ducts have grown along the Wolffian ducts and have just joined the sinus horns. (Redrawn from Baxter (1935)) by permission of the Carnegie Institution.)
Fig. 6: Pouch young of Didelphis virginiana, head length of 9.0 mm. The Mullerian ducts have grown along the Wolffian ducts and have just joined the sinus horns. (Redrawn from Baxter (1935)) by permission of the Carnegie Institution.)