NDEX. xxxvii 



V. ROT>E^TIA--(continued). 

 Gen. — Avvicola, 128 



Groups of Arvicola. — Fiber, 128 



Arvicola, 128 

 Geoiyclms, 129 

 Otorays, ISO 

 Dipus, ISO 

 Gen. — Helamys or Pedeies, 131 

 Spalax, 131 

 Lai-liyergus, 132 



Geomys, or Pseuaosuoma, or Ascomys, 132 

 Diplosiom;', 132 

 Casior, 133 

 Myopotamus, 134 

 Hystiix, 134 

 Suhgen. of IIi/s/.rix.—Uyi.tn:i, 135 



Atherubus, 135 

 Eretison, 135 

 Synellieres, 135 

 Gen. — Lepus, 136 



Sribgen. — Lepus, 136 



Lagomys, 137 

 Gen. — Ilydiocboevus, 138 



Cavia or Anceraa, 138 

 Snbgcn. — Kerodon, 139 

 Gen. — Clilo^omys or D?syprocla, J 39 

 Coelogenys, 139 



VI. EDENTATA, 140 



Tribe 1, Tardign'da, 140 



Gen. — Bi^dypus, 141 

 Aclieus, 141 

 Cholgepus, 142 

 Megallierium, 142 

 Meg;ilonyx, 143 



Tribe 2, Edentala Ordinaria, 143 

 Gen. — Dasypus, 143 



Subgen. — Cacliicharaus, 143 

 Apara, 144 

 Encoubertus, 144 

 Cabassous, 145 

 Priodonles, 145 

 Clamyphorus, 145 

 Gen. — Orycteropus, 146 



Myrmecophaga, 146 

 Manis, 147 



Tribe 3, Monotremata, 148 



Gen. — Ecbidna or Tachyglossus, 148 



Ornitliorhynchus or Platypus, 149 



