Peripatus leuckartii has proved to be by no means uncommon in Victoria, being now recorded from a good many distinct localities, and forming a very characteristic constituent of our cryptozoic fauna. Hitherto, however, little has been known of its habits, and nothing of its mode of reproduction. The only observer, so far as I am aware, who has recorded anything concerning its life-history, is Mr. Fletcher, who has described (Proc. Linn. Soc. N.S.W., October 31, 1888) four very young individuals, the progeny of a female kept by him in captivity in damp moss and leaves for four months (July to October inclusive). Mr. Fletcher did not observe the birth of the young, but found them in company with the mother when apparently only a few days old. He assumes, naturally enough, that they were born alive, as in all other species of peripatus whose life-history is known; this viviparous habit being, indeed, one of the most remarkable characters of the genus.