Chapter Two 



^Aquatic Mammals 



J_ HE FOLLOWING members of the class Mammalia are definitely, al- 

 though not necessarily exclusively, aquatic in their predilections : 



MONOTREMATA 



Ormthorhynchus 

 MARSUPIALIA 



Chironectes 

 INSECTIVORA 

 Talpidae 



Desmana 



Galemys 

 Soricidae 



Neosorex 



Atophyrax 



Neomys 



Chimarrogale 



Crossogale 



Nectogale 

 Tenrecidae 



Limn o gale 



Potomogale 

 CARNIVORA 

 Ursidae 



Thalarctos 

 Mustelidae 



Mustela (the mink and sump 



f otter only) 

 Lutrinae (all genera) 

 Enhydrinae (the single genus) 

 PINNIPEDIA (all) 

 Otariidae 

 Odobenidae 

 Phocidae 



RODENTIA 



Octodontidae 



Myocastor 

 Hydrochoeridae 



Hydrochoerus 

 Muridae 



Crossomys 



Hydromys 



Parahydromys 



Dasymys 



Nilopegamys 



Arvicola 



Microtus (partly) 



Ondatra 



Neo fiber 

 Castoridae (all) 



Castor 

 Cricetidae 



Ichthyomys 



Rheomys 



Anotomys 

 LAGOMORPHA 

 Leporidae 



Sylvilagus palustris 



Sylvilagus aquaticus 

 ARTIODACTYLA 



Hippopotamidae (all) 



Hippopotamus 



Choeropsis 

 PERISSODACTYLA 

 Tapiridae (all) 

 24] 



