90 Bulletin American Museum of Natural History. [Vol. XXVII, 



vipara", a term used by Bonaparte but credited by him (1837, p. 248, 

 footnote), to Owen in the present system are called "Implacentalia" and 

 include only the subclass "Lyencephala." The "Mutilata" is the ancient 

 group of Marine Mammals. 



The detailed arrangement of the orders contains little that is original. 

 To de Blainville's groups " Ongulogrades a doigts pairs," "Ongulogrades 

 a doigts impairs" Owen's terms "Artiodactyla," "Perissodactyla," of 

 1847, are applied; but whereas de Blainville had included in the "Ungulo- 

 grades a doigts impairs" only the forms now generally recognized as 

 Perissodactyla, Owen includes in that group, in the classification under con- 

 sideration, such wholly extraneous forms as Coryphodon, Macrauclienia, 

 Hyrax and Toxodon. 



Oweyi's Classification of 186S. 

 Class Mammalia. 



Genetic Section Placentalia. 

 Subclass Archencephala. 



Order Bimana. Homo. 

 Subclass Gyrencephala. 



A. Unguiculata. 



Order Quadrumana. 



Suborder Catarhina. 



" Platyrhina. 



" Strepsirhina [Lemuroids and Galeopithecus]. 

 Order Carnivora [including seals, etc.] 



B. Ungulata. 



Order Artiodactyla. 



Suborder Ruminantia. 



Suborder Omnivora [e. g., Merycopotamus, Dichodon, Xipho- 

 don, Anoplotherium, Microtherium, Entelodon, Hippo- 

 potamus, Hexaprotodon, etc. Suidff, Anthracotherium]. 



Order Perissodactyla (Coryphodon, Pliolophus, Hyracotherium, 

 Lophiodon, Palaeotherium, Paloplotherium, Macrauchenia, 

 Elasmotherium, Rhinoceros, etc., Hyrax, Anchitherium, 

 Hipparion, Tapirus, Toxodon, Nesodon). 



Order Proboscidea. 



C. Mutilata. 

 Order Sirenia. 

 Order Cetacea. 



Subclass Lissencephala. 

 Order Bruta. 

 Order Cheiroptera. 

 Order Insectivora. 

 Order Rodentia. 

 Genetic Section Implacentalia. 

 Subclass Lyencephala. 

 Order Marsupialia. 

 " Monotremata. 



