CHAP. V.] 



CLASSIFICATION. 



89 



Order— CET ACE A. 



Sub-order I.- 

 Mystaceti. 



Fam. (Carus). 

 Balaenidae 

 Balsenopteridae 

 C Catodontidae ... 



Hyperoodontidse 



Su £ ord f er l }-\ Monodontidffl 

 Odontoceti. 



Delphinidas ... 



Extinct family Zeuglodontidae, 



Fam. (Gray). 



36. Balaenidae. 



37. Balaenopteridae. 



38. CatodontidaB. 



!Hyperoodontidae. 

 Epiodontklae. 

 Xiphiada?. 



(Part of Delphinidae.) 

 Platanistida?. 

 Iniadae. 

 Delphinidae. 

 Globiocephalidas. 

 Orcadse. 

 Belugidae. 

 Pontoporiadae. 



40. 



41 



Order— SIKENIA. 



The order Sirenia, comprising the sea-cows, consists of a single 

 family : 



Family 42. Manatidae. 



The extensive order Ungulata comprises the three orders 

 Pachydermata, Solidungula, and Paiminantia of the older natu- 

 ralists. The following classification is that now generally 

 adopted, the only difference of opinion being as to whether 

 some of the groups should be classed as families or sub-families, 

 a matter of little importance for our purpose : 



Perissodactyla or 

 Odd-toed Ungulates 



Artiodactyla or 

 Even-toed Ungulates 



Vol. I.— 8 



Order— UNGULATA. 



Fam. 



43. Equidae 



... 44. Tapiridse 



45. Rhinocerotidae . . , 

 ( 46. Hippopotamida? 



(47. Suidse 



I Tylopoda 48. Camelidae 

 < Tragulina 49. Tragulidae 



50. Cervidae , 



Pecora J 51. Canielopardidae 



Bovidae 



Suina 



{50. 

 51. 

 52. 



Horses. 



Tapirs. 



Rhinoceros. 



Hippopotamus. 



Swine. 



Camels. 



Chevrotains. 



Deer. 



Giraffes. 

 ( Cattle, Sheep, 

 ( Antelopes, &c. 



