WHERE ANIMALS LIVE 7 



Phylum 2. Porifera. SPONGES. 2500. 



Phylum 3. Coelenterata. JELLYFISHES, POLYPS, and 



CORALS. 4300. 



Phylum 4. Platyhelminthes. TAPEWORMS, FLUKES. 4600. 

 Phylum 5. Nemathelminthes. THREADWORMS. 1500. 

 Phylum 6. Annelida. SEGMENTED WORMS. 4000. 

 Phylum 7. Echinodermata. STARFISHES, SEA URCHINS. 



3000. 



Phylum 8. Mollusca. CLAMS, SNAILS. 60,000. 

 Phylum 9. Arthropoda. CRABS, INSECTS, SPIDERS. 



400,000. 

 SUBKINGDOM II. VERTEBRATA. Animals with backbones. 



30,000. 

 Phylum 10. Vertebrata. FISHES, AMPHIBIANS, REPTILES, 



BIRDS, MAMMALS. 30,000. 



REFERENCES 



Cyclopedia of American Agriculture. Edited by L. H. Bailey. The 



Macmillan Co., N. Y. City. Vol. III. Animals. 

 Cambridge Natural History. Edited by S. F. Harmer and A. E. Shipley. 



The Macmillan Co., N. Y. City. 10 volumes. 

 College Zoology, by R. W. Hegner. The Macmillan Co., N. Y. City. 

 American Natural History, by W. T. Hornaday. Charles Scribner's Sons, 



N. Y. City. 



Nature Study and Life, by C. F. Hodge. Ginn and Co., Boston, Mass. 

 Practical Zoology, by Marshall and Hurst. G. P. Putnam's Sons, N. Y. 



City. 

 Textbook of Zoology, by Parker and Haswell. The Macmillan Co., N. Y. 



City. 2 volumes. 

 Outlines of Zoology, by J. A. Thomson. D. Appleton and Co., N. Y. City. 



