Note www — BOOK IV.
Reading edition
The Opossum hath a curious Bag on purpose for the securing and carrying about her young. There are belonging to this Bag two Bones (not to be met with in any other Skeleton) and four Pair of Muscles; and some say Teats lie therein also. Dr. Tyson, Anat. of the Oposs. in Phil. Trans. Nᵒ. 239. where he also, from Oppian, mentions the Dog-Fish, that upon any Storm or Danger, receives the young Ones into her Belly, which come out again when the Fright is over. So also the Squatina and Glaucus, the same Author saith, have the same Care for their young, but receive them into different Receptacles.