98 THE BRITISH MAMMALS PAST AND PRESENT. 



MARSUPIALIA. 



PLAGIAULACID&. 



Plagiaulax becklesi (Middle Purbeck). 

 Plagiaulax falconer! (Middle Purbeck). 

 Plagiaulax medius (Middle Purbeck). 

 Plagiaulax minor (Middle Purbeck). 



BOLODONTID&. 



Bolodon crassidens (Middle Purbeck). 

 Microlestes moorei (Rhaetic). 

 Microlestes rhaeticus (Rhaetic). 



TRICONODONTID&. 



Triconodon ferox (Middle Purbeck). 

 Triconodon mordax (Middle Purbeck). 

 Triconodon major (Middle Purbeck). 



AMPHITHERIID&. 



Phascolotherium bucklandi (Stonesfield Slate). 

 Amphilestes broderipi (Stonesfield Slate). 

 Ampthitherium prevosti (Stonesfield Slate). 

 Amblotherium dubius (Middle Purbeck). 

 Amblotherium mustelula (Middle Purbeck). 

 Amblotherium soricinum (Middle Purbeck). 

 Amblotherium talpoides (Middle Purbeck). 

 Achyrodon nanus (Middle Purbeck(. 

 Achyrodon pusillus (Middle Purbeck). 

 Amphitylus oweni (Stonesfield Slate). 

 Kurtodon pusillus (Middle Purbeck). 

 Peramus tenuirostris (Middle Purbeck). 



DIDELPHYID&. 



DideJphys cqlch^steri (Lower Eocene),. 



