Notes on the egg of the Echidna setosa.

For many years past, and even to the present time, grave doubts have existed in the minds of many as to the mode of breeding in connection with the Platypus and the Echidna. To the scientific world Mr. Caldwell, in 1883, set at rest any doubt as to the question whether this peculiar order of animals was viviparous or oviviparous, by securing a, large number of specimens of the Echidna and the Platypus in various stages of development. It is not recorded, however, that the egg of the Echidna had ever been found in Tasmania, and, therefore the specimen I have much pleasure in submitting to the Fellows- this evening will doubtless be of great interest.
Includes illustrative plate.