SOME OF THE FORMS OF ANIMALS. 



Fig. 10. Squid. 



Fig. 11. Land Snail. 



Fig. 12. Snail Shell. 



Fig. 13. Fresh- Water Mussel. 



Other kinds of animals, as Squids, Snails, Mussels, 

 Clams, and Oysters, have neither a backbone nor a 

 jointed body ; but the whole body is soft, sometimes 

 with a shell outside, and sometimes without a shell, 

 and they are called MOLLUSKS, from a word which 

 means soft. See Figures 10-13. 



