III. — GENERAL DIVISION OF THE ANIMAL KINGDOM. 



15 



III. 



GENERAL DIVISION OF THE ANIMAL 



KINGDOM. 



Kingdom is rather arbitrarily divided into 

 known as the Vertebrata and the 



The Animal 

 two grea 

 Invertebrata. 



Sub-kingdoms 



The VERTEBRATA include all animals having a back-bone, 

 which surrounds and protects a persistent cellular substance, called 

 the " notochord or spinal marrow " ; they have a bony skull and 

 skeleton (except in the case of certain classes of fishes hereafter 

 mentioned), and generally four limbs, which however in some 

 cases are rudimentary. The vertebrated animals are divided 

 into five classes, viz., Mammalia, Aves, Reptilia, Batrachia, and 

 Pisces, which are again subdivided into orders as in the following 



tables. 



Class I.— MAMMALIA. 



Order I.— Bimana 



„ II.— Quadrumana 



„ III.— Garni vor a 



»> 



IV.— Insectivora 



v.— Chiroptera 

 VI.— Rodentia 

 VII.— Ungulata 



„ VIII.— Cetacea 

 „ IX.— Sirenia 



Two-handed animals — Men. 



Four-handed animals — Monkeys and 

 Lemurs. 



Flesh-eating animals— Lions, Tigers, 

 Cats, Dogs, Bears, Seals, &c. 



Insect-eating animals — Moles, Hedge- 

 hogs, &c. 



Hand- winged Mammalia — Insectivor- 

 ous and Fruit-eating Bats. 



Gnawing animals — Kats, Rabbits, 

 Squirrels, Porcupines, Beavers, &c. 



Hoofed animals — Elephants, Rhino- 

 ceros, Horses, Pigs, Hippopota- 

 mi, Camels, Oxen, Deer, Sheep, 

 Goats. 



Aquatic animals — Whales. 



— Dugongs & Manatees 



J' 



