CHAP. Y.] CLASSIFICATION. — 89 
eee ———————————— 
Order—CETACEA. 
Fam. (Carus). Fam. (GRAY). 
Sub-order I.— { Balenide ... ... ... 36. Balenide. 
Mystaceti. (Balenopteride .. ... 37. Balenopteride. 
Catodontide ... ... ... 38. Catodontide. 
ae ae 
Hyperoodontide ... ... 39. Genes 
Xiphiade. 
ee ee Monodontide ... «.. 40. (Part of Delphinide.) 
al Platanistidee. 
Iniade. 
Delphinide. 
Delphinide ... ... ... 41.) Globiocephalide. 
Orcade. 
Belugide. 
Pontoporiade. 
Extinct family Zeuglodontide. 
Order—SIRENTIA. 
The order Sirenia, comprising the sea-cows, consists of a single 
family : 
Family 42. Manatide. 
The extensive order Ungulata comprises the three orders 
Pachydermata, Sélidungula, and Ruminantia 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 : 
Order—UNGULATA. 
Fam. 
. 43, Equide ... ... Horses. 
Perissodactyla or ue zs ; 
ow. «-. 44, Tapiride ... ... Tapirs. 
eo Pmaulaies 45. Rhinocerotide... Rhinoceros. 
. 46. Hippopotamide Hippopotamus. 
a AT, Sates. os; ss. Swine. 
. Tylopoda 48, Camelidze ... Camels. 
Baas i Uopulat a Tragulina 49. Tragulidz ... Chevrotains. 
51. Camelopardide — Giraffes. 
52. Bovidee ..:1 ... ae Sheep, 
50. Cervide ... ... Deer. 
Pecora / 
Antelopes, &c. 
Vou. I.—8 
