CONTENTS 



THE ELEVENTH VOLUME. 



PAGE 



Memoir of John Barclay, M.D., .... 17 



Introduction, 45 



The Opossums, 75 



DlDELPHID^, ib. 



Virginian OjMSSum, 79 



Azara^s Opossum. Plate I. 83 



Orah-eating Opossum, 85 



Californiari Opossum, 87 



ShoH-lieaded Opossum, 88 



Quica Opossum, 90 



Surinam Opossum, 92 



Naked-tailed Opossum. Plate II. ... . 94 



Lord Derby's Opossum. Plate II.* .... 97 



Woolly Opossum, 98 



Thick-tailed Opossum, 100 



Philander Opossum^ 102 



Cinereous Opossum, 103 



Merian's Opossum, 104 



Murine Opossum, 105 



Elegant Opossum, 106 



Three-striped Opossum. Plate III 107 



Tricolored Opossum, 109 



Short-tailed Opossum, . . . , . . Ill 



Didelphys Pusilla, 112 



The Yapock Opossum. Plate lY. . . . . il:^ 



