t ONTFA'TS. 



MEMOIR OF JOHN BARCLAY, M.D., .... 



INTRODUCTION, 45 



THE OPOSSUMS, J 5 



DlDELPHIDjE, ib< 



Virginian Opossum, 



Azara's Opossum. Plate I 



Crab-eating Opossum, 



Californian Opossum, 



Short-headed Opossum, .... 



Quica Opossum, 



Surinam Opossum, . .... 



Naked-tailed Opossum. Plate II 



Lord Derby's Opossum. Plate II.* .... 

 Woolly Opossum, ....... 



Thick-tailed Opossum, 100 



Philander Opossum, 



Cinereous Opossum, ... 

 Meriarfs Opossum, ... 

 Murine Opossum, 



Elegant Opossum, 



Three-striped Opossum. Plate III. ... 107 



Tricolored Opossum, 109 



Short-tailed Opossum, 1^*1 



Didelphys PusUla, 



The Yapock Opossum. Plate IV ib. 



