en 

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h 



W 

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w 

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m 



> 



BIRDS. 

 Flying Birds. Running Birds. 



Placentals. 

 MAMMALS. Marsupials. 

 Monotremes. 



Snakes. Lizards. 



REPTILES. Crocodiles. Tortoises. 



Dipnoi. 

 FISHES. Bon y Rshes - 



Ganoids. 

 Elasmobranchs. 



LANCELET. 



AMPHIBIANS. 

 Newt. Frog. 



CYCLOSTOMATA. 

 Lamprey. Hag-fish. 



TUNICATES. 



BALANOGLOSSUS 



Insects. Arachnids. 



Myriopflds. _ 

 Peripatus. 



ARTHROPODS. 



Crustaceans. 



ANNELIDS. 



"WORMS. 



UNSEGMENTED 

 WORMS. 



Cuttlefish. 

 Gasteropods. 



MOLLUSCS. 



Bivalves. 



Feather-stars. 



Brittle-stars. 



Star-fish. 



ECHINODERMS. 



Sea-urchins. 

 Sea-cucumbers. 



Ctenophores. Jelly-fish. Sea-anemones. 



CCELENTERA. 

 Medusoids and Hydroids. 



Corals. 



SPONGES. 



Infusorians. Rhizopods. Gregarines. 



SIMPLEST ANIMALS. 



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13 



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