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. 



