CLASSIFICATION OF ANIMALS. 103 
TABLE OF THE CLASSIFICATION OF ANIMALS. 
*,* This table does not contain a complete classification of animals, but only the great 
Divisions and the principal Classes and Orders, as given in the preceding pages. 
DIVISION I.—PROTOZOA. 
Animals of the most simple organisation, having no nervous system, and, with the 
exception of one group, no mouth or intestinal canal. 
CLASSES.—Rhizopoda—Sponges—Infusoria. 
DIVISION Il.—CC@LENTERATA. 
Animals with soft bodies composed of two layers, the digestive cavity being sur- 
rounded by tentacles. . : 
DIVISION IIl.—RADIATA. 
Radiated or Rayed animals, as star-fishes. 
CLASS.—Echinodermata, as star-fishes, sea-urchins, 
DIVISION IV.—ARTICULATA. 
Articulated or Jointed animals. 
CLASS I.—Annelide, as earthworms, leeches. 
_n IL—Myriopoda, as centipedes, gallyworms. 
n I11.—Crustacea, as the crab, lobster, shrimp. 
» .1V.—Arachnida, as the spider, scorpion, mite. 
« V.—Insecta, insects. 
ORDER 1. Coleoptera, insects having wing-cases, as the beetle, glows 
worm, firefly. 
" 2. Orthoptera, insects having soft wing-covers folded like a 
fan, as the locust, grasshopper, cricket. 
" 3. Neuroptera, insects having four wings divided into a net- 
work, as the dragon-fly, may-fly, white ant. 
" 4. Hymenoptera, insects having membranous wings, and 
many of them stings, as the ant, bee. 
" 5. Lepidoptera, insects which have the wings covered with 
scales, and undergo a complete metamorphosis, as 
butterflies, moths. 
i 6. Diptera, two-winged insects, as flies, midges, gnats. 
DIVISION V.—MOLLUSCA. 
Soft-bodied animals, as snails, whelks, limpets, oysters, mussels, cutile-fish, squids. 
DIVISION VI.—VERTEBRATA. 
Animals having an internal skeleton with backbone and skull. 
CLASS I.—Fishes, cold-blooded animals, as the herring, cod, salmon, shark. 
SuB-CLASS 1. Osseous Fishes, as the cod, salmon, herring. 
" 2. Cartilaginous Fishes, as the shark, skate, sturgeon. 
»  I11,—Amphibians, cold-blooded animals, living either on land or in water, as 
the frog, toad, newt; and breathing by gills when young, and by 
lungs when mature. 
n I11.—Reptiles, cold-blooded animals, breathing by lungs at all periods of life. 
ORDER 1, Ophidians or Serpents. 
" 2. Saurians, as lizards, crocodiles. 
" 3. Chelonians, as tortoises, turtles. 
» 1V.—Birds, warm-blooded animals, oviparous, and covered with feathers, the 
fore-limbs being modified into wings. 
ORDER 1. Accipitres, Rapaces, or Raptores, birds of prey. 
Group 1. Diurnal, as eagles, falcons, hawks, vultures. 
" 2. Nocturnal, as owls. 
